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Here you have 2 issues. A cron expression have only 5 elements not 6.Also according to your expression your cron will be excecuted on the dat 9 of each monthprobably you want something like thisYou probably want to verify your cron expression with a tool likehttps://crontab.guru/
|
I have a problem executing a cron job in node/express application using node-cron library. The application is deployed on Google Cloud App Engine.I want to send automatic emails every day at 9 AM, but the cron only work in the first day and then never sends.Here is my code :cron.schedule("0 0 9 * * *", () => {
sendEmails();
},{
scheduled: true,
timezone: "Europe/Paris"
});Thanks
|
Node cron job executes only first time on GCP App Engine
|
Instead of creating many separate cron jobs which each do one retrieve/update job, just create one generic cron job which doesallthe retrieval/updating work.If you want them to run independently and simultaneously, you could spawn separate processes from that one cron job. You could do that dynamically from PHP, so you can use a current list of cities and spawn a separate process for each.For example, instead of running "php updatecity.php Washington" (as an example of how you run your php script that updates a particular city), run this:nohup php updatecity.php "$city" > /dev/null 2>&1 &This will launch a separate php process silently in the background, running yourupdatecity.phpscript with a$cityparameter as argument.Make sure your processes cannot stall or keep running, otherwise you may end up flooding your server with tons of unterminated processes.
|
Let's say a website who needs to display the updated content every 5 minutes. For sure we can use a cron job to schedule a PHP script like$weather = file_get_contents("https://weather.com/country/state/city/day/hour/minute.json");
$upload_to_database = send_data_to_db();Let's say this simple script takes the data and send it to the MYSQL and then the data is being displayed on frontend by fetching data using AJAX every few minutes or maybe sending the notifications after analyzing the data and so on...Now, what if we have thousands of cities. How can I create cron jobs for those cities automatically?I hope you did understand my question.Another example can be SERP Rank tracker for thousands of keywords and so on...
|
Schedule Thousands Of Tasks [PHP Scripts] On a Server
|
I recommend you to use an online cron expression generator, like thisone.Please note also that the 0 is the first hour, not the last one.
So in "23,0", 0 is not the hour following 11pm, it's 0 am - see screenshot
|
I'm building an integration using Apache Camel. I have two routes that are triggered by the following cron expressions:quartz2:delayone?cron=0 */15 23,0 * * ?quartz2:delaytwo?cron=0 */15 3,4 * * ?I expect the first to be triggered each day at 11pm every 15 minutes until 12.45 am, which it does!I expect the second one to be triggered each day at 3am every 15 minutes until 3.45am, which ... it doesn't, it only fires twice once at 3am and then again at 3.15am!Can you spot anything I am doing wrong?
|
Quartz Cron Expression not working correctly
|
Quoting thedocsforschedulerproperty of FTP Component.To use a cron scheduler from either camel-spring or camel-quartz component. The value can be one of: none, spring, quartzTo use a cron style expression, you need to couple FTP with one of the two scheduler options mentioned in the docs.For using quartz as a scheduler in Camel 3.x, try thisAdd dependency to camel-quartzAdd paramsscheduler=quartz&scheduler.cron=<your crown expression>to FTP route definitionIf you are using Camel 2.x,Add dependency to camel-quartz2Add paramsscheduler=quartz2&scheduler.cron=<your crown expression>to FTP route definition
|
I would like to include a scheduler in my camel route that will start it every day at 8.
This is my route that takes a file from an ftp:from(
"$uri?" +
"password=RAW($pass)" +
"&include=$source_file_type" +
"&passiveMode=true" +
"&delete=true"
)
.log("Connected to FTP")I tried to put in my from this:"&scheduler.cron=$cron_expression"but it did not work
|
Route camel cron expression
|
Why don't you just convert the jupyter notebook into a raw python file? You can use this command:jupyter nbconvert --to script "[YOUR_NOTEBOOK].ipynb"(replace[YOUR_NOTEBOOK]with your notebook name)EDIT:You could also useJuptext, as pointed out by @Wayne in the comments below.If youneeda jupyter notebook:UsedatalaborpapermillUse theSeekWall Chrome ExtenstionCreate a custom python script to launch jupyter notebook, and run that python script using theAutomatorapp in your Mac
|
I have a Jupyter notebook that scrapes web data and saves a dataframe to a csv. I would like to run this every day automatically. I am using a mac for this project.I have looked around a lot (including here:how to run a python jupyter notebook daily automatically), but as of yet I have not found a clear enough answer. I am quite new to all this, so I am looking for a step-by-step: like how you'd explain it to someone with no knowledge on cron etc.Any advice would be much appreciated! Thank you!
|
Automatically running a Jupyter notebook
|
You can't set it on this way. You should explicitly describe the hours:0,40 */2 * * *
20 1,3,5,7,9,11,13,15,17,19,21,23 * * *This above will work on all Linux distributions. But on some UNIX OS you will need to replace*/2with0,2,4,6,8,10,12,14,16,18,20,22
|
I try set crontab every 40 minutes with*/40 * * * *but this way is every 40 minutes and next is of 20 minutos, and repeat.
|
How do I set a crontab every 40 minutes?
|
You use totally wrong syntax. You add more stars. And questionmark which is not accepted there. Here is the syntax you search:50 * * * * sh test.shAnd as mentioned in comments you cant have 50 as hour definitionAnd instead of using explicit shell add it in shebang and make the script executable
|
I am trying to run a scheduled job via crontab in linux mint. For that, I am using the crontab -e command to edit a crontab file with the following information:0 50 * ? * * * sh test.shAfter which I get the error:"/tmp/crontab.XCXmSA/crontab":22: bad hour
errors in crontab file, can't install.I tried searching but couldn't find anything that solved the problem. Tried a bunch of different times and still nothing. Any ideas?
|
Bad hour in crontab file
|
Try/etc/fstab, for example with something like://u123@u123/foo /mnt/foo smbfs rw,late,-N 0 0If the option "late" is specified, the file system will be automatically
mounted at a stage of system startup after remote mount points are
mounted. (man fstab)Then in/etc/nsmb.confyou could have something like:[U123]
addr=192.168.1.20
retry_count=100
timeout=30
[U123:U123]
password=secret
|
I want a FreeBSD machine to mount a SMB share from a Linux server automatically after boot. Hence I wrote a script to run in the root crontab to mount it. I have set the require credential and IP on the/root/.nsmbrcand script runs fine on command line. However, it fails when being called from crontab with the following error.mount_smbfs: unable to open connection: syserr = Authentication errorThe content of the file/root/.nsmbrc[default]
workgroup=WORKGROUP
[UBUNTU]
addr=192.168.1.20
charsets=UTF-8:UTF-8
[UBUNTU:FREEBSD]
password=[***trimmed***]The mounting line/usr/sbin/mount_smbfs -N -f 666 -d 777 //freebsd@ubuntu/share /net/ubuntu/shareHow do I fix it?Many thanks!
|
mount_smbfs fails in crontab with "mount_smbfs: unable to open connection: syserr = Authentication error"
|
Most certainly/var/www/html/phpand/path/to/php/bin/phpdo not exist. You can find out where thephpexecutable is by usingwhereis php(as you stated in your comment, it is/usr/bin/php). So to make your artisan command run every minute your cron line should be* * * * * /usr/bin/php /var/www/html/artisan shows:fetchrss >> /dev/null 2>&1I would suggest though to run Laravel's scheduler every minute:* * * * * /usr/bin/php /var/www/html/artisan schedule:run >> /dev/null 2>&1and schedule your artisan command inside of Laravel, as writtenon Laravel's task scheduling documentation. This way you can manage your scheduled jobs or re-schedule them without having to edit/touch your crontab.
|
I am new to Ubuntu server and i install cron job and then make new cron job and no idea why its not working. My application is in Laravel so i have to run artisan command through cron job! When i am in project through root cmdartisan-command run properly but in cron did not run it.here is my cron job listedI check the if its running or not like this:# sudo grep -i cron /var/log/syslog|tail -3This is the output:Jan 21 09:30:01 liedergut CRON[5222]:(root) CMD (/path/to/php/bin/php /var/www/html/artisan shows:fetchrss >> /dev/null 2>&1)
Jan 21 09:30:01 liedergut CRON[5223]: (root) CMD (php /var/www/html/artisan shows:fetchrss >> /dev/null 2>&1)
|
laravel artisan command cron job is not working on ubuntu server
|
I found solution, since I use Mojave.I need to make additional settings in the system. Who would have thought ...enter link description hereThis turns out to be a problem, since you need to allow permissions for cron.
And correct run command for crontab -e, this* * * * * /bin/bash -l -c 'ruby /Users/vitalii/Desktop/Home/update/update.rb'
|
I want run my script from the crontab on Mac OS, but I'm getting an error:ruby: Operation not permitted -- /Users/vitalii/Desktop/Home/update/update.rb (LoadError)My preferences for the cron task and settings are created usingrvm cron setup:#sm start rvm
PATH="/Users/vitalii/.rvm/gems/ruby-2.4.1/bin:/Users/vitalii/.rvm/gems/ruby-2.4.1@global/bin:/Users/vitalii/.rvm/rubies/ruby-2.4.1/bin:/Users/vitalii/.rvm/gems/ruby-2.4.1/bin:/Users/vitalii/.rvm/gems/ruby-2.4.1@global/bin:/Users/vitalii/.rvm/rubies/ruby-2.4.1/bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/VMware Fusion.app/Contents/Public:/Applications/Postgres.app/Contents/Versions/latest/bin:/Users/vitalii/.rvm/bin"
GEM_HOME='/Users/vitalii/.rvm/gems/ruby-2.4.1'
GEM_PATH='/Users/vitalii/.rvm/gems/ruby-2.4.1:/Users/vitalii/.rvm/gems/ruby-2.4.1@global'
MY_RUBY_HOME='/Users/vitalii/.rvm/rubies/ruby-2.4.1'
IRBRC='/Users/vitalii/.rvm/rubies/ruby-2.4.1/.irbrc'
RUBY_VERSION='ruby-2.4.1'
#sm end rvm
* * * * * ruby /Users/vitalii/Desktop/Home/update/update.rb >> /Users/vitalii/Desktop/logfile.txt 2>&1I gave each file the rights to execute withchmod 777, but there are no changes and the error is repeated.The contents of the fileupdate.rbareputs 'Hello, World!!!'Can someone tell me what's going on and what I'm doing wrong ?
|
How to run a script from crontab and avoid "LoadError"
|
13-23/2 * * 7 /run_script.sh
0 1-23/2 * * 1-4 /run_script.sh
0 1-13/2 * * 5 /run_script.sh3 entries seems easier for the eye?
|
I am looking for a way to run a script every two hours starting after a 1pm on Sunday and ending at 1pm on Friday.Is there any special cron job syntax for this?
The only way I can think of to do it this is something like:00 */2 * * 0-5 [ [ `/bin/date +\%u` -eq 0 ] && [ `/bin/date +\%H` -gt 13 ] || \
[ `/bin/date +\%u` -eq 5 ] && [ `/bin/date +\%H` -lt 13 ] ] && /run_script.shWhich feels kind of dirty...Is there any better way to do this?
|
Clean way to run a cron after a certain time on Sunday and before a time on friday
|
You should replace this with the version with the full path to the python interpreter, because whatever is run from thecronlacks the "usual" environment variables setup, namely, PATH is what you're missing the most:def roda_processo(processo):
os.system('/usr/local/bin/python3.7 {}'.format(processo))
|
I have one script.py which calls other multiprocessing scripts as follows my scripts.py:import os
from multiprocessing import Pool
scriptspy = [
'/pyscripts/apoiont01.py',
'/pyscripts/access.py',
'/pyscripts/dental.py',
'/pyscripts/cremers.py',
'/pyscripts/delcuritib.py',
'/pyscripts/dtalndes.py',
'/pyscripts/lobo.py',
'/pyscripts/ierre.py',
'/pyscripts/daster.py',
'/pyscripts/dsul.py',
'/pyscripts/doema.py',
'/pyscripts/maz.py',
'/pyscripts/deura.py',
'/pyscripts/der.py',
'/pyscripts/dlo.py',
'/pyscripts/deoltda.py',
'/pyscripts/dpeed.py',
'/pyscripts/derr.py',
'/pyscripts/dweb.py',
]
def roda_processo(processo):
os.system('python3.7 {}'.format(processo))
for s in scriptspy:
roda_processo(s)My crontab -e:* * * * 1,5 /usr/local/bin/python3.7 /pyscripts/scripts.py > /pyscripts/logs/scripts.logFunny thing is, if I run that same manual run command on the terminal:/ usr / local / bin / python3. 7 /pyscripts/scripts.py > / pyscripts/logs / scripts.logit runs normally.Log /var/log/cron.log:https://gist.githubusercontent.com/braganetx/a05c8b7257df79305dd1b79008323011/raw/8aec453a74566e8872608d1705f05004c1e12e5e/log
|
python multithreading issue in cronjob no execute
|
first of all to figure out why it's not working, you can redirect the output of the command.you can redirect the output:01 19 * * * aws s3 aws s3 cp s3://sfbucket.bucket/sf_events.json /Users/Documents/data/sf_events.json >> /Users/Arun/Learning/help-project/cron-help/logs2.txt 2>&1this solution will not solve your problem, but it will show you the problem.Solution:this worked for me01 19 * * * /Library/Frameworks/Python.framework/Versions/3.7/bin/aws s3 cp s3://sfbucket.bucket/sf_events.json /Users/Documents/data/sf_events.json >> /Users/Arun/Learning/help-project/cron-help/logs2.txt 2>&1
|
I have a very simple script that I'm using to download a file from an Amazon S3 bucket and place it in a folder on my local machine:aws s3 cp s3://sfbucket.bucket/sf_events.json /Users/Documents/data/sf_events.jsonIf I type this in command line, it works without issue. However, I want this script to run once a day automatically, so I'm trying to put it in crontab:01 19 * * * aws s3 cp s3://sfbucket.bucket/sf_events.json /Users/Documents/data/sf_events.jsonFor some reason, this fails to run in crontab. Why might this not work?
|
How to debug why an Amazon S3 download in crontab is not working
|
You can usethispart of mongodb doc to create a shell script that can retrieve, manipulate and save your data.
If you're using a Linux server you can run a cronjob and run your shell script usingcrontab(you can set a CRON job like this:20 * * * * /path/to/script.sh, don't forget fo make the script executable bychmod +x /path/to/script.sh).
|
I want to run a CRON job that will retrieve stats for all databases and all the collection on the MongoDB production server.
And then maintain this data somewhere, preferably in a database on the same server.I am able to do it using Node.js, but is there any possibility to do it without having to set up Node.js on the server? Or what is the best practice?
|
Maintain database and collection stats of all database and collections on MongoDB server - cron job
|
OK...I figured it out. It was SELinux permissions on the /root/.my.cnf file. (I've found information out there saying that the /etc/.my.cnf file would also work, but apparently it's not being checked in this case.)I will add that I was temporarily led down a false path when I realized that exactly the same error can be triggered if the $HOME environment variable is not set in your environment when you run the logrotate command. So, if you're seeing this and it's not SELinux, check your $HOME variable and ensure that the corresponding directory is holding the .my.cnf file.
|
I have a CentOS 7.7 box. It's running mariadb 15.1I'm trying to setup a process that will dump databases to the filesystem daily. The dumped data will be managed by logrotate, with logrotate dumping the data and rotating the files, keeping only the most recent versions.I've done this on other systems without problems, but this server isn't cooperating.The /etc/logrotate.d/mariadb file contains stanzas similar to the following (one for each database on the system):/usr/local/backups/database-dumps/dbname-SQL-dump.sql.gz {
daily
rotate 8
nocompress
create 640 root adm
postrotate
mysqldump -u root dbname > /usr/local/backups/database-dumps/dbname-SQL-dump.sql --single-transaction
gzip -9f /usr/local/backups/database-dumps/dbname-SQL-dump.sql
endscript
}I've created .my.cnf files (permissions set to 0600, owned by root) in /root and /etc.If this runs via the normally scheduled logrotate, it invariably fails with:mysqldump: Got error: 1045: "Access denied for user 'root'@'localhost' (using password: NO)" when trying to connectIt works if I explicitly run that logrotate config file using a cron job for root using a crontab entry such as:50 8 * * * /usr/sbin/logrotate -f /etc/logrotate.d/mariadbWhat am I missing? Why would the mysqldump work when run via root's crontab, but fail when run via the normally scheduled logrotate?
|
mysqldump throws an "Access denied" error, but only when run via logrotate?
|
most of time you have a job with the same name in the database, which must be updated by another member of the cluster.Either you could try to rename your job (jobkey), or check if the database is not used by someone else.Nevertheless, a job update its configuration at startup.
|
I am trying to create a job which will run every Saturday at 8 pm using cron expression input to the trigger scheduler. But my job is getting executed every 10 minutes? What on earth have I done wrong here, please help. My app setup stack is Spring Boot + Hibernate. The code is as follows.@Bean(name = "emailReportJobDetail")
public JobDetail emailReportJobDetail() {
return newJob().ofType(EmailReportJob.class).storeDurably().withIdentity(JobKey.jobKey("Qrtz_EmailReportProcessor")).withDescription("Invoke EmailReportProcessor Job service...").build();
}
@Bean
public Trigger emailReportTrigger(@Qualifier("emailReportJobDetail") JobDetail job) {
logger.info("Configuring emailReportTrigger to fire every Saturday 8 PM GMT");
return newTrigger().forJob(job).withIdentity(TriggerKey.triggerKey("Qrtz_EmailReportProcessor")).withDescription("EmailReportProcessor trigger")
.withSchedule(CronScheduleBuilder.cronSchedule("0 0 20 ? * SAT")
)
.build();
}
|
Why is my quartz job not getting triggered according to given cron expression, instead firing every 10 minutes?
|
A example of master script in bash , i usedwaitto wait for the completion ofscript that was started in background with&This example assume :
that all yours scripts are a folder/home/me/myproject/you have alogsfolder where you want to capture some outputs#!/bin/bash
cd /home/me/myproject/
bin/s11 > logs/s11_stdout.log 2>logs/s11_stderr.log &
bin/s12 > logs/s12_stdout.log 2>logs/s12_stderr.log &
wait
./s21 &
./s22 &
wait
s31 &
s32 &
wait
|
Have six scripts which I want to execute once a day using following logic:s11, s12 can start and run parallels21, s22 should only start after s11 and s12 finished. Both can run parallels31, s32 should only start after s21 and s22 finished. Both can run parallelSo far I did it by starting a daily masterscript m by cron.
m started all six scripts s11-s32, s11 and s12 did their job directly but the others looked every minute in a counter file and only if the counter had the right value they started the real job. Each script changed the counter before closing, this was the handover to the next script generation.
But for other reasons my server was too busy that the new cron started m before the yesterday scripts finished and I screwed up my data.I assume others had similar problems and know a little library or anything else to get this done properly and stable, for sure the new series shouldn't start before the old finished... .Thanks in advance for any hints!
|
cron job to execute programs one after the other?
|
Its not wise to operate directly with cron file. But you can add record with script like this:crontab -l >/tmp/c1
echo '15 9 * * * /full/path/to/scripts/check_backup_include_list.sh' >>/tmp/c1
crontab /tmp/c1If you want to remove particular record you can do for example with something like this:crontab -l >/tmp/c1
grep -v check_backup_include_list.sh' /tmp/c1 > /tmp/c2
crontab /tmp/c2
|
I have to automate my Crontab script and would like to insert some things in my Crontab file, I want to do that without interactive query and it should look like command:crontab_admin.sh -add -s "15 9 * * *" -c "check_backup_include_list.sh" -u "USERNAME" -t "CRQ000000000000"
crontab_admin.sh -remove -s "15 9 * * *" -c "check_backup_include_list.sh" -u "USERNAME" -t "CRQ000000000000"and it should look like this in crontab afterwards:15 9 * * * $HOME/scripts/check_backup_include_list.shsry for my bad english
|
How can I create a crontab in a Shell script
|
Referring to theFormatting the scheduledocs below.There is no supported syntax for your 1st cron:specifying minutes in an[INTERVAL_VALUE]is only supported byEND-TIME INTERVALandSTART-TIME INTERVALformats, but neither of them allows specifying months in the[INTERVAL_SCOPE].the only format supporting month specification in[INTERVAL_SCOPE]isCUSTOM INTERVAL, but that only supports day specifications in[INTERVAL_VALUE].But you can achieve an equivalent functionality by using the finer time specification incron.yamland making a check for the remaining conditions inside the cron job itself, doing nothing if the condition is not met. So your 1st cron would be achieved with:thiscron.yamlentry:schedule: every 50 minutes from 11:00 to 21:00an additional check for the current month inside the cron job itself, doing nothing (just returning) if the month is Jan, Feb, Nov or Dec.Your 2nd cron is possible using aCUSTOM INTERVAL, you just need to place the hour at the end of the[INTERVAL_SCOPE]. From the doc:[INTERVAL_SCOPE]: Specifies a clause that corresponds with the
specified [INTERVAL_VALUE]. Custom intervals can include theof
[MONTH]clause, which specifies a single month in a year, or a
comma-separated list of multiple months. You must also define a
specific time for when you want the job to run, for example:of
[MONTH] [HH:MM].So your entry would be:schedule: every day of mar,apr,may,jun,jul,aug,sep,oct 22:00
|
I'm struggling to format a cron schedule for gcp properly and the docs aren't really helping me out.Cron #1: Run every 50 minutes from 11:00 to 21:00 only on the months from march to october inclusiveschedule: every 50 minutes from 11:00 to 21:00 of mar,apr,may,jun,jul,aug,sep,octCron #2: Run every day at 22:00 only on the months from march to october inclusiveschedule: every day 22:00 of mar,apr,may,jun,jul,aug,sep,octNeither of those work, but they were one of my attempts. What am I doing wrong here?
|
Google cloud cron.yaml schedule formatting for custom repetitive interval
|
Just summarized as an answer, as @DavidMakogon said in comment, the correct crontab expression should be{second} {minute} {hour} {day} {month} {day-of-week}in Timer Trigger of Azure Functions.The sectionNCRONTAB expressionsof the offical documentTimer trigger for Azure Functionsexplains it, as the figure below.
|
I want to call every day at 23:00.I try the following:[TimerTrigger("0 23 * * *")]TimerInfo myTimer,but I get an error:Microsoft.Azure.WebJobs.Host: Error indexing method
'FunctionAppCallEfsFuelCards.Run'. Microsoft.Azure.WebJobs.Extensions:
The schedule expression '0 23 * * *' was not recognized as a valid
cron expression or timespan string.what is wrong?
|
Azure Function and CRON again
|
Can you please try this?0 0 0 ? * SUN,SAT *Refer:This
|
I have a job to execute on Saturday and Sunday, but not on weekdays. This is how I schedule it:myTriggerBuilder.withSchedule(cronSchedule("0 0 0 * * ?")).build();The scheduler in use is Quartz.This will run at 00:00:00 server time each day. However, I would like to make it work only on Saturday and Sunday, however, in American calendars Saturday is the end of the week and Sunday is the start of the week. I have been searching thedocsfor an example or description which explains how can I specify certain days of the week rather than intervals, but the docs either does not provide that information, or I have missed it. I have tried it this way:myTriggerBuilder.withSchedule(cronSchedule("0 0 0 * * SAT,SUN")).build();However, the whole thing crashed:java.lang.RuntimeException: CronExpression '0 0 0 * * SAT,SUN' is
invalid.Is there a way to express what I want, that is, to tell the scheduler which days of the week I intend to run the job?
|
How to schedule crontrigger to run on certain days of the week?
|
I wonder if I could do something like this?Create a LASTSYNCDATE field in the Maximo ASSETS and LOCATIONS tables.Configure the JSON mapping so that the LASTSYNCDATE field is populated with&SYSDATE&.For each record, if the sync was successful, then the LASTSYNCDATE field would be populated.
|
I have GIS assets that are integrated/synced with Maximo via cron tasks.I want to query the Maximoassetstable to get the last sync date.This is not to be confused with thechangedatecolumn, which I believe updates after any change, including manual changes to the asset (ie. not necessarily due to a sync).How can I query assets' last sync date using SQL?Maximo 7.6.1.1; Oracle 12c.
|
Maximo Assets: Last sync date
|
This looks like you try a fixed day of the month with incorrect date format.
The purpose of "-15" here is to set the day to 15th day of the month, then with "day ago" you go back one day.
Also with %Y%m you only get Year and Month, If you get 20190822 there is somewhere a date +%Y%m%d in your script.To go back two days:date -d "-2 days" +%Y%m%dI've tried this script:date_test=$(date -d "2 days ago" +%Y%m%d)
echo $date_test > ~/test/date_test.outAnd got 20190821 in my file.
|
In the crontab, after a script I see a parameter:date -d "($(date +\%Y\%m)-15) day ago" '+\%Y\%m\%d'This generates a date - "20190822" if ran on 23-Aug-2019 i.e. a day back.My questions is:1) What is the purpose of "- 15" and "$(date +\%Y\%m\%d)" here?2) If I want to generate 2 days back, what do I do?I have tried:
date -d "2 days ago" '+%Y%m%d'
This works on the bash screen but this doesn't run the job in the crontab.
|
How do I modify this cron script to give date 2 days back
|
What you need is called a cronjob. The implementation of this depends mostly on your hosting, but the syntax is always pretty much the same. Let's say you have a file calledcron.phpwhich contains the logic for your automatic changes.The cronjob would look something like this:0 0 * * * location/to/cron.phpThe first two numbers mean at 0 minutes and 0 hours (so 00:00), the following stars mean every day, every month and every weekday. More information about cronjobshereandhere.
|
I'm trying to develop a react/redux application and I want to run some server code without needing to trigger an action client side. Right now my needs are to calculate and storage some info in the database and i don't want to run a client that triggers a server action, but in the future i want to make some automatic changes in the database everyday to update my database information based on my previous information. Is there a way to do it?
|
How can I start periodical actions server side?
|
Addnameparameter. For example- name: Add autostart script to cron
cron:
name: "autostart"
special_time: reboot
user: user
state: present
job: /usr/local/bin/autostart.shQuoting fromcronname: Description of a crontab entry or, if env is set, the name of environment variable. Required if state=absent. Note thatif name is not set and state=present, then a new crontab entry will always be created, regardless of existing ones. This parameter will always be required in future releases.
|
I have added the following line to cron to run the script on reboot@reboot /usr/local/bin/autostart.shBut when I prepared the ansible script for it I found that it adds 1 more line each time I apply the ansible.The task is below:- name: Add autostart script to cron
cron:
special_time: reboot
user: user
state: present
job: /usr/local/bin/autostart.shAnd after several updates I get the following cron:#Ansible: None
@reboot /usr/local/bin/autostart.sh
#Ansible: None
@reboot /usr/local/bin/autostart.sh
#Ansible: None
@reboot /usr/local/bin/autostart.sh
#Ansible: None
@reboot /usr/local/bin/autostart.shAs for me this is strange behavior becausestate: presentshould check if the record is already present.Or maybe have I missed anything else?
|
Ansible adds the crontask on each apply
|
crontab dosn't set PATH an cannot find the binarys. Add PATH at the top of your script, or with an export at top of crontab.# for example
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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I have the following crontab setup.30 * * * 1-5 /home/ubuntu/script_abc.shscript_abc.sh has permission-rwxr-xr-xand the following content.#!/bin/sh
source ~/my_app/venv/bin/activate
export APP_KEY=abkajdfljdasfljdalfk
cd ~/my_app
python ~/my_app/scripts/scan.pyIt seems crontab never run my script. Any idea?
|
Crontab never run on Ubuntu
|
You can use multiple lines of repeated/scheduled executions.0 */5 * * *
30 2-23/5 * * *First execution: By the beginning of every fifth hour.0:00 5:00 10:00 15:00 20:00Second execution: By the half of every fifth hour starting at 2:30am.2:30 7:30 12:30 17:30 22:30
|
I need to schedule a Jenkins job which need tobuild every 2 and half hour(every 150 minute). I have checked google but haven't find a useful link which help me with this, most of the links are referring to whole number hour's.Also is it possible to run a Jenkins Jobevery 30 secondsandevery 1 minute.When I tried for every 1 minute*/1 * * * *it was running for every 1 hour instead of 1 minute.Any guidance on this will be very helpful.
|
Schedule Jenkins Job every 2 and half Hour
|
Oh nvm i figured it out. I have to execute the command as the user who has heroku-cli. So basically:sudo -u username heroku config:get...
|
I'm running a cron job which executes a shell script. What the shell script does is execute a few heroku-cli commands, for example:#crontab
* * * * * /path-to-script/my-script.sh > log#!/bin/bash
token=$(heroku config:get MY_TOKEN --app my-heroku-app)
echo $tokenFrom the code snippet above, I expected the token to be retrieved from the heroku command and saved to the log. But it seems that the command couldn't even be executed when I checked my log file. When I execute the shell script without using cron, everything worked just fine.
|
Heroku CLI command does not work when executed by cron
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If you're scheduling a job in Oracle then you almost certainly want to useDBMS_SCHEDULER. It is safer, more powerful, and more reliable than default operating system schedulers. It's also portable, and the same job will work no matter what platform Oracle is running on.If someone asked you to "create a cron job on Windows", they probably used the word "cron" in a generic sense to mean some sort of scheduling system. Windows does not have cron by default. I'm sure there's a way to install it, but why add non-standard, less powerful software?--Create initial objects:
create table test1(a number);
insert into test1 values(1);
create table test2(a number);
--Create the job:
begin
dbms_scheduler.create_job(
job_name => 'daily_table_copy',
job_type => 'PLSQL_BLOCK',
job_action =>
q'[
begin
insert into test2
select * from test1;
commit;
end;
]',
repeat_interval => 'freq=daily;byhour=4;byminute=0;',
start_date => systimestamp at time zone 'US/Eastern'
);
end;
/
--Monitor the job:
select * from dba_scheduler_jobs where job_name = 'DAILY_TABLE_COPY';
select * from dba_scheduler_running_jobs where job_name = 'DAILY_TABLE_COPY';
|
I hava a database where I want to perform query on one table, and push its output to another table and this need to be done at specific time interval.I want to do this using cron in windows.I am using oracle database.
Please let me know the steps and files need to be created for the same.
|
How to schedule a cron job in windows to execute a query or stored procedure in oracle database at specific interval?
|
Try changingiptablesto/sbin/iptables(* in the crontab. The default path for cron doesn't usually include /sbin.*) or whatevertype iptablesprints.
|
I am having two computers. First "Router" have two ip address(10.3.0.1and192.168.1.105) is looking to internet and to sub-network10.3.0.0/28and havenet.ipv4.ip_forward=1. I also added rules to iptables to allow forwarding from10.3.0.0/24. Second "User" have an ip10.3.0.14and def route10.3.0.1I need to create cron job which will write hourly to a log file/var/log/net-usage/10.3.0.14.logthe quantity of the transition data (upload and download). I need to use rsyslog(combined with loger), cron and iptables. Log format must be likeDec 31 08:23:06 Upload: 171K; Download: 8799KI tried to solve it using transition information from iptables -vnLI wrote simple bash codescript.shand made it executable#!/bin/bash
date=$(date '+ %h %d %H:%M:%S')
upload=$(iptables -vnL |sed -n 11p| awk '{print"UPLOAD" " " $2 ";"}')
download=$(iptables -vnL | sed -n 12p | awk '{print "DOWNLOAD" " " $2}')
echo $date $upload $download >> /var/log/net-usage/10.3.0.14.logI am having two issues. First when i am running this script from terminal./script.shi got what i wantJu20 15 08:05:12 UPLOAD 1446K; DOWNLOAD 25MBut when tried to add it to cron.crontab -e0 * * * * /path_to_script/script.shI got onlyJul 20 05:00:01without upload/download statistics in my 10.3.0.14.log file.Second issue. I need to duplicate file 10.3.0.14.log from router to a user machine using rsyslog(and logger if needed). And put it to/var/log/net-usage.log.
|
Crontab job than writes transition data to log file
|
Problem in your code is equivalent to the one described here:https://github.com/golang/go/wiki/CommonMistakes#using-goroutines-on-loop-iterator-variablesTo fix it:for _, va := range devices {
va := va // create a new "va" variable on each iteration
c.AddFunc("@every 30s", func() { test(va) })
}
|
import (
"fmt"
"gopkg.in/robfig/cron.v3"
)
func test(x int) {
fmt.Println("acessesing device", x)
}
func main() {
c := cron.New()
x := make(chan bool)
devices := [10]int{1,2,3,4,5,6,7,8,9,10}
for _, va := range devices {
c.AddFunc("@every 30s", func() { test(va) })
}
c.Start()
<-x
}output got by the above program:acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13acessesing gateway 13I like run the same function with different inputExpected output for every 30sacessesing gateway 1acessesing gateway 2acessesing gateway 3acessesing gateway 4acessesing gateway 5acessesing gateway 6acessesing gateway 7acessesing gateway 8acessesing gateway 9acessesing gateway 10
|
how do I create multiple CRON function by looping through a list
|
How can I access to Jenkins PVC from cronjob in order to do some batch procedures on PV?Personally I think you can consider the following ways to share Jenkins PVC with CronJob pods.Share PV which is created as ReadWriteMany with two PVC, such as Jenkins PVC and CrontJob PVC. ReferSharing an NFS mount across two persistent volume claimsfor more details.OR mount Jenkins PVC when CronJob Pod start up after stopping the Jenkins Pod.
It's required to stop Jenkins Pod before mount the PVC with Cronjob pod.I hope it help you.
|
I have Jenkins POD that mounts a pv with a pvc.
Now I want to create a cronjob that use the same pvc in order to do some log rotation on jenkins build.How can I access to Jenkins PVC from cronjob in order to do some batch procedures on PV?
|
Mount a volume on cronjob in Openshift
|
This webpage helped me for all my cron needs on my schedulers:Cron MakerI don´t get how often you want your tasked to be performed but in anycase, hopefully the web page helps you.
|
This question already has answers here:Spring Cron scheduler “disable pattern”(3 answers)Closed4 years ago.I am working on job schedule in Spring app. I want to stop job execution. So, Can someone help me to provide CRON expresssion for the same.I have tried few links in googling but as there is no year field(Which is available in other CRON like Unix etc) in the SPRING CRON expression, we can not give previous year to disable the same.I can comment OR remove bean code, that will disable it BUT my requirement is to achieve the same via spring CRON expression.Thanks in Advance.quartz..cron=0/90 * * * * ?
|
Spring Cron expression to not execute job at all at any time? [duplicate]
|
does timer trigger only take a single cron schedule?
Yes, timer trigger could have only one cron expressionAbout dynamically cron expression, you could refer to thisConfiguration, theScheduleExpressionalows the setting in app settings. You could set with"schedule": "%TriggerSchedule%".And define TriggerSchedule in your appsettings. Then modify your appsettings dynamically.The other way is use theKudu APIto modify the function.json.PUT https://{functionAppName}.scm.azurewebsites.net/api/vfs/{pathToFunction.json}, Headers: If-Match: "*", Body: new function.json contentThen sync the function trigger.POST https://{functionAppName}.scm.azurewebsites.net/api/functions/synctriggersCan a different function (HTTP triggered) run my original function
(timer triggered) and also change the environment variable?You could invoke a HTTP trigger function in a Timer function, however the Azure Functions runtime configuration file is not writable. But as it runs App Service, you can manage those settings programmatically viaPowerShell,REST api, or through theCLI.Keep in mindthat changes to those settings will trigger a site restart
|
I have a Azure Function (node.js) and a list of exact times (7:30, 8:05, etc.) in a database table. I would like to trigger the Azure Function at exact times using the database table.Now my problems aredoes timer trigger only take a single cron schedule?can I maybe use environment variables to trigger at time1 (e.g. 7:30) then when it is done, change the environment variable to time2 (e.g. 8:05) in the code? So that it would run again at time2 (8:05)?Can a different function (HTTP triggered) run my original function (timer triggered) and also change the environment variable?
|
Azure Function Timer Triggered at exact time from database table
|
You can use this1 0 * * * /usr/local/bin/php /path-to-your-public_html/www.5kcinema.com/index.php cron
|
My website hosting server is Godaddy and website is www.5kcinema.comI am using codeigniter frameworkI have a script that runs and check whether movie is released today or not, if released date is today's date then movie is moved from upcoming movies to latest moviesMy Controller file is Cron.php and function is index.class Cron extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->model('listing_model');
}
public function index() {
$tableName = 'movies_tbl m';
$condition = "m.status=1 AND m.is_deleted=0 AND m.date_published='".date('Y-m-d')."'";
$data = $this->listing_model->getAll($tableName, $condition, NULL, 1, 'object');
if (count($data) > 0) {
foreach ($data as $row) {
$id = $row->id;
$movie_data['mtype'] = 1;
$this->listing_model->insert_update($tableName, $movie_data, $id);
}
}
}
}I want this code to run in cron job every night at 12.01am
|
Codeigniter Cronjob for godaddy hosting
|
You can comment your schedule line out with a leading#, and remove the comment marker again when you want it to run.http://man7.org/linux/man-pages/man5/crontab.5.html
|
I wanted to create a crontab file with schedule but do not want it to run.
How can I achieve this?I created a crontab file usingcrontab -e, added the job. This has started running. I do not want this to run as the job should be scheduled ad hoc.I wanted to prepare and keep and use the schedule on ad hoc.
|
How can I schedule a cron job but not execute it?
|
A canonical solution would be to have a cronjob running every X minutes that looks up your db for tasks to be executed and launch a celery task for each (so the task execution is async). You'll have to be careful about race conditions though so the same tasks is not executed twice concurrently (the celery task should check and update the db task status, or you could use redis as a tasklock).Also,celery already provides an ETA feature to program future tasks executions- which may or not be enough for your needs, depending on the context.
|
I have django-project with some tasks, which are saved in db. I need that tasks are executed in certain time. I thiink about cron or celery, but I see only function like repeated actions, but I need to do in time which is saved in my db. How can I do this?
|
How to implement to do tasks by schedule?
|
I would like to thank @Florian Schlag for helping me reach the answer and giving me the correct answer. I have pasted my file below for reference. Please note that I had to change some files around but these can be deduced from output npm errors.#!/bin/bash
PATH=$PATH:/home/<user>/bin/
NPM="`which npm`"
if [ "x" == "x$NPM" ]; then
(>&2 echo "NPM not installed")
exit 1
fi
pID=$(pgrep "PM2" -f)
if [ -n "${pID}" ];
then
exit 0
else
# start it
echo "restarting"
nohup $NPM start ./<file path ton script> --production &
fi
|
I have a cron job that runs a shell script every minute. However I keep getting/usr/bin/env: node: No such file or directory
restarting
nohup: failed to run command ‘npm’: No such file or directoryas an output.I have tried installing pm2 globally but this doesnt work.This is my Shell file:#!/bin/bash
PATH=$PATH: /home/dev/bin/npm
pID=$(pgrep -x "PM2")
if [ -n "${pID}" ];
then
#do nothing
echo $pID "already running. not restarting."
else
# start it
echo "restarting"
nohup npm ./home/dev/public_node/server.js --production &
fiIt should start the server.js file through pm2?
|
Shell node: No such file or directory
|
If you useopen("filename.txt", 'mode'), it will open that file in the directory from which the script isexecuted, not relative to the current directory of the script. If you want the path to directory where the script exists, import theosmodule and useopen(os.path.dirname(os.path.abspath(__file__))+"filename.txt"). The permission error is because the file doesn't exist; sudo overrides that but does nothing because the file doesn't exist.
|
I have a script on a RHEL 7.x machine written in Python3. In testing this script I created a function which will append to a text file in the same directory.If I execute the script from the local directory ie -./pyscript.pyeverything works as expected.But I am trying to execute this from a Bash script a couple directories higher and it doesn't seem to work right. The other functions in the script will execute, but this very last one which appends to a text file will not.Now, if I run the script as the user which owns it(and the txt file) from my home dir, the script errors out with a permission error. BUT if I run the script withsudoit finishes with NO error, However it does NOT write to the text file.My user has RW privileges on every dir between the bash script and the python script.Any thoughts on why asudoor local user run doesn't seem to let me write to the text file??EditTraceback (most recent call last):
File "ace/ppod/my_venv/emergingThreats/et_pro_watchlists.py", line 165, in <module>
with open('etProLog.txt', 'a') as outlog:
PermissionError: [Errno 13] Permission denied: 'etProLog.txt'
|
Python open and "permission denied" on file with ugo+rw?
|
Explicitlyexitfrom the program and pass a valid exit status that is not 0 so that cron will recognise it as exiting in an error state.fwrite(STDERR, "This is a fatal error!" . PHP_EOL);
exit 1;
|
I am creating a cronjob in cPanel that runs a simple PHP script.If my CronJob fails then the server automatically sends me an email which is good, but how can I trigger this error from my PHP script?Is there a way like with exit() or similar?
|
Any way to trigger a Cron error using PHP?
|
The queue is enough for this task. You should usedelayed dispatching. When users use an api endpoint or create some entity you dispatch delaying 30 minutes. Something like this:SendNotification::dispatch($podcast)->delay(now()->addMinutes(30));
|
I am working on Laravel as a back-end for mobile app.As the app make the entry in db, then after 30 minutes I have to send push notification to the app indicating that you have used the app for 30 minutes.Doesqueueandcronwill solve my problem? Or is there any other way to do this? I am new to Laravel. please give me some suggestions.
|
run a piece of code after 30 min after the entry in db, in laravel
|
If you have too many crons, they will stumble over each other. And, why use cron? Will you be repeating this task daily? Instead have one job that divvies up the 50000 and launch 10 subprocesses to do the work.Start with as many crons as your CPU has cores. If the API is cpu-bound, this may be optimal.If the API is somewhere else, then it depends on how much of your time is spent waiting for the results to come back.Batch things, if possible, in whatever is the slowest leg -- the API or the fetch from the database.Goals:Maximize use ofyourresources.Don't exceed what your resources can achieve. (If 10 PHPs saturates the CPU, it would bebadto increase to 100.)Beware of rate limitations in the API. (One place limits me to 10/minute, so I had to slow down to avoid errors from the API!)
|
Right now, I've a php script that is selecting ~50000 records from database and calling api for each record and on the bases of api response updating records status in the database.I had thought about using 10 php file run from 10 crons each and dividing 50000 records by 10 then each script have to deal with 5000 records only. but as the records increase I have to create more crons.am I doing it right or Is there any other better way of doing this?
|
How to optimize cron and PHP script for large data update and multiple API calls
|
You do not need$mysqli->close();at all. Your connection object is called$link. The second line should be:$link->query("update users set downloads = 0");You should probably also check if it executed properly and if not do something about it.Your full code in second file could look like this (assuming the connection is successful):<?php
require_once('/home/cron/connect.php'); // connect to db
if( $link->query("update users set downloads = 0") ){
// succesful
} else {
// fail
}
|
I have MySQL database, it contain a table with a column called "downloads"I want to update this column to 0 every 24h, but it seems my code doesn't work!I have folder on the server named cron.
Inside it there is two files, one to connect to the database, and the other contain the php code to reset the column downloads to 0This is my connection code:<?php
$link = mysqli_connect("localhost", "test", "root", "test1");
if (!$link) {
echo "Error: Unable to connect to MySQL." . PHP_EOL;
echo "Debugging errno: " . mysqli_connect_errno() . PHP_EOL;
echo "Debugging error: " . mysqli_connect_error() . PHP_EOL;
exit;
}
echo "Success: A proper connection to MySQL was made! The my_db database is great." . PHP_EOL;
echo "Host information: " . mysqli_get_host_info($link) . PHP_EOL;
?>And my php code that I want to use it in cronjob is this one:<?php
require_once('/home/cron/connect.php'); // connect to db
$mysqli = ("update users set downloads = 0");
$mysqli->close();
?>I fired the file directly from the browser but it doesn't reset the column downloads to zero! what I'm doing wrong?Note: of course there is .htaccess file to protect direct access to the connection fileEDIT: There is no error at connection if I run the code of connection, but the second code from cronjob doesn't work!
|
What I'm doing wrong? "cronjob"
|
The first problem to solve is the fact that you want a more generic function that can be run any month and produce the correct result. A good tool to get the information you need(Abbreviated month and last two digits of the year) isdate.date -d "last month" +%bWhen run on April 1st, 2019 will produce "Mar".date -d "last month" +%b%yWhen run on April 1st, 2019 will produce "Mar19".Now that we know how to get the information we want, placing thedatecommands in thetarcommand will automatically produce what the result you're looking for.tar -cvzf somezipfile_$(date -d "last month"%b%y).tar.gz somelogfile_**$(date -d "last month" +%b)** --remove-filesThe last issue that exists is scheduling, which can be solved usingcron. The below statement will run/bin/foobar, on the 5th day of every month when added to your crontab file. (crontab -eto edit your crontab file)0 0 5 * * /bin/foobarCombining everything together, you get:0 0 5 * * /bin/tar -cvzf somezipfile_$(date -d "last month"\%b\%y).tar.gz somelogfile_**$(date -d "last month" +\%b)** --remove-filesDon't forget to escape the %'s in the crontab
|
I am trying to run a schedule job on centOS to .gz and delete a whole month of logs from a directory. The logs are named somelogfile_12Apr19_18_19_41.log, somelogfile_28Mar19_07_08_20.logI can run the below script to manually do this tasktar -cvzf somezipfile_Mar19.tar.gz somelogfile_**Mar** --remove-filesThe scheduled job should run every 5th day of the month to compress and delete the previous months logs. What will the automated script be like? I am stuck at how to include only the previous months logs based on the month name (Jan,Feb,Mar, etc.)
|
shell job to compress & delete logs, once in a month
|
This is probably the easiest way to fix it.chdir(dirname(__FILE__)); //its been a while but I think __FILE__ works better with bind mounts and symlink but don't quote me on that.
//chdir(__DIR__);I can't quite remember, but I think I had to use this one time for a wordpress site, that I made a cron job for. If I remember correctly it had some relative directories, from 3rd party plugins etc...Other wise you can use__DIR__before your files.I never use relative directories, I either use a constantdefine('BASE_DIR', __DIR__); //or something else besides __DIR__Or I just use__DIR__and never have these kinds of issues. I like knowing exactly where my files are.require __DIR__.'/somefile.php';
require BASE_DIR.'/somefile.php';This is not really a PHP issue, its more an issue of how cron calls the PHP file, because the relative paths will be relative to the location of the crontab file.SummeryThat said about using__DIR__I know from my own experience, you can't control how third parties include files, sochdiris probably the only workable solution in that case.Hope it helps.
|
I'm on GoDaddy shared hosting. In my cron job PHP script, I userequire()to include some other files. The cron job PHP script works fine when I use it manually (via entering its url to the address bar), but when the cron job is performed, the cron script works fine, except it can't find the required files.I have the following cron command:/usr/local/bin/php -q /home/username/public_html/domainname/cron/script.php >/dev/null 2>&1I readherethat one option is to use full paths inrequire(). Another option is to modify the cron command, which is what I want to learn. My question is how to modify the above cron command so that myrequire()in the cron script will work (without using full paths).Thanks.
|
Correct Cron job command in order for PHP require() to work
|
You can redirect output to syslog withlogger:* * * * * cd ~/Desktop/tools && ./remind.sh 2>&1 | logger
|
I have created script that runs a command that uses printf to print to the stdout. I have set the script up on a crontab to run every minute. Everything works fine, except that the output is sent to mail every time. Is there a way to just have the output pop up on the stdout every minute?I have tried some redirecting to &1 in the shell script, but that has not worked.* * * * * cd ~/Desktop/tools && ./remind.shAs I said, the output is mailed to me, and does not simply show up in stdout every minute.
|
How to redirect crontab output from mail to stdout
|
After every 12 hours you want to run job any particular minute from 0 to 59, not every other minute. So it should be (assuming0thminute):('0 */12 * * *', 'some_method','>>'+os.path.join(BASE_DIR,'log/mail.log'))For once in a day or every 24 hours (You can decide any specific hour from 0 to 23, assuming at midnight):('0 0 * * *', 'some_method','>>'+os.path.join(BASE_DIR,'log/mail.log'))
|
I have a django crontab sceduled to run every 12 hours, meaning it should run twice per day however, it is running more than that.
Can anyone tell me what's wront with it ?('* */12 * * *', 'some_method','>>'+os.path.join(BASE_DIR,'log/mail.log'))Also what changes I need to make if I need it to run every 24 hours?
|
Django crontab, running a job every 12 hours
|
You will need three cron records to run it till 1:30:*/15 18-23 * * * myexec
*/15 0 * * * myexec
0,15 1 * * * myexecThe first two lines can be combines like this:*/15 0,18,19,20,21,22,23 * * * myexecIf you need to run it only during weekdays think about those runs from midnight. If you want to follow the cycle you will need to run one of them in Saturday. And the command will be:*/15 18-23 * * 1-5 myexec
*/15 0 * * 2-6 myexec
0,15 1 * * 2-6 myexecNB!If you want to run it every 30 minutes (as per headline) you need to change your cron records on this way*/30 18-23 * * 1-5 myexec
*/30 0 * * 2-6 myexec
0 1 * * 2-6 myexec
|
After reading crontab manual I used the following command to execute my process for every 15 minutes from 18:00 to 23:00 of a day.MIN Minute field 0 to 59
HOUR Hour field 0 to 23
DOM Day of Month 1-31
MON Month field 1-12
DOW Day Of Week 0-6
CMD Command Any command to be executed.My command,*/15 18-23 * * * myexecI want to run my process from the time18:00of the day to early morning01:30of next day. I want to run this each and every day. How do I do this?Second Question, If I run this the above process only for weekdays, Is my following command is right?*/15 18-23 * * 1-5 myexec
|
Crontab execute every 15 minutes for two days
|
It's hard to say without more debug info, but a common problem when running cron tasks is the working directory location. If you're expecting your attachments to be in the folder with the script and refer to them using relative paths likefilename.txt, that path is not relative to the script, but the cron process' working dir, which could be anywhere. It works when you run it from the web because your web server changes directory to the virtual host's root directory before running your script, so relative paths will work.Try either using absolute paths for your file attachments (e.g. using__DIR__.'/filename.txt'), or change directory before running your cron task:*/2 * * * * cd /var/www/Apps/Appsname && /usr/bin/php /var/www/Apps/Appsname/weeklybusinessemail.php
|
I have two cron jobs0 8 * * * /usr/bin/php /var/www/Apps/Appsname/Extract.php
*/2 * * * * /usr/bin/php /var/www/Apps/Appsname/weeklybusinessemail.phpThe extract cronjob works perfectly fine.The weeklybusinessemail.php does not.It has a phpmailer script with attachments in it.When I run weeklybusinessemail.php via the url it works and sends an email, yet via the crontab it does not!
All names match.Any help would be greatly appreciated
|
Cronjob and PHPmailer not working as expected
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As a 1st step you should setup cron job (ex:cron.php) which will be executed every 5 minutes.crontab*/5 * * * * /path_to_your_cron_php/cron.phpLets assume that you have your urls in file namedfile.txtin this simple txt format.file.txthttps://www.google.com/
https://www.alexa.com/
https://www.yourdomain.com/Lets create file where we will keep index of url we want to execute next inindex.txtwhich will have just 1 line with 1 value.index.txt0cron.php<?php
$fileWithUrl = '/path/to/your/file.txt';
$index = (int)file_get_contents('/path/to/your/index.txt');
$urls = file($fileWithUrl);
$maxIndex = count($urls);
$url = $urls[$index];
your_parse_function($url);
file_put_contents('/path/to/your/index.txt',($index >= $maxIndex) ? 0 : $index++);As you can see this script reads content offile.txtandindex.txt. Convert 1st one to an array of urls and castindex.txtto integer index.
After execution ofyour_parse_function()this script will replace the content ofindex.phpwith incremented index or reset it to 0 if it is bigger than number of urls we have infile.txt.
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Let's say I have a text file that has a list of urls, from which social media comments must be parsed regularly. I don't want to parse comments from all pages at once as that's a significant load. I need to run my script with a different$urlvariable corresponding to a line from that text file each 5 minutes.So it must take the first line as$urland complete the script using this variable, after 5 minutes the variable$urlmust change to the second line from that file and complete the script with it, in another 5 minutes the same must be repeated for the third line from that file, and so on. When it reaches the last line, it must start from the beginning.Sorry, can't show any attempts, because I have no idea how to implement it, and I couldn't come up with an appropriate search request either.
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run the same script but with a different variable each given period of time
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The command you must exec is this:MAILTO=root
30 4 * * * /usr/sbin/aide --checkCron interpretrootas command. The original cron records differ from those incron.dailyand so on directories because the standardcronrecords are per user, not per specific time
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My system is centos 7.4.Aftercrontab -e,I addMAILTO=root
30 4 * * * root /usr/sbin/aide --checkThen I receive email as below:From: "(Cron Daemon)" <[email protected]>
To:[email protected]Subject: Cron <root@myserver> root /usr/sbin/aide --check
Content-Type: text/plain; charset=UTF-8
Auto-Submitted: auto-generated
Precedence: bulk
X-Cron-Env: <XDG_SESSION_ID=37>
X-Cron-Env: <XDG_RUNTIME_DIR=/run/user/0>
X-Cron-Env: <LANG=en_US.UTF-8>
X-Cron-Env: <MAILTO=root>
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>
Message-Id: <[email protected]>
Date: Fri, 1 Mar 2019 04:32:01
/bin/sh: root: command not foundI checked/var/log/aide/aide.logis empty, there's no any information inmessagesandsecure.It seemed my crontab script is somewhere wrong.I just want to receiveaide --checkreport,where is the problem?
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How to add a cron job with crontab -e
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I prefer to create a shell script and, in that shell script, write my bteq as a heredoc:#!/bin/bash
bteqSYSTEM="your teradata domain name or ip"
bteqUSER="your teradata username"
bteqPWD="your teradata password"
bteq <<- BTEQSCRIPT 1> /DATA/home/pverma3/bteq_output.log
.LOGON ${bteqSYSTEM}/${bteqUSER},${bteqPWD}
DROP TABLE S_BNKFRD.PV_TEMP;
CREATE TABLE S_BNKFRD.PV_TEMP AS
(
SELECT
Current_Time AS Curr_Time
)WITH DATA;
.LOGOFF
.QUIT
BTEQSCRIPTThis compartmentalizes all of the necessary bits into a single file that is easily called from cron:#call my script every day at 1am
0 1 * * * /bin/bash /path/to/this/script.shIf you wanted to keep your existing SQL file and refer to it from your bteq script you could do:#!/bin/bash
bteqSYSTEM="your teradata domain name or ip"
bteqUSER="your teradata username"
bteqPWD="your teradata password"
bteq <<- BTEQSCRIPT 1> /DATA/home/pverma3/bteq_output.log
.LOGON ${bteqSYSTEM}/${bteqUSER},${bteqPWD}
.RUN FILE=/DATA/home/pverma3/CronTab_Test_Piyush.sql;
.LOGOFF
.QUIT
BTEQSCRIPTYou may also consider putting that sql into a stored procedure and then just calling the procedure from your bteq. This way you keep all of the sql off the command line where it's a bit more difficult to edit it.
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My work requires me to refresh certain Teradata tables everyday. I came across crontab and been trying to schedule a small Teradata query. Following are the codes:Teradata:DROP TABLE S_BNKFRD.PV_TEMP;
CREATE TABLE S_BNKFRD.PV_TEMP AS
(
SELECT
Current_Time AS Curr_Time
)WITH DATA;Crontab:* * * * * cd && . ./.profile;BTEQ -p /DATA/home/pverma3/CronTab_Test_Piyush.sqlThe Teradata query sits in theCronTab_Test_Piyush.sqlfile in the given location which I need to run every min (this was just a baby step towards learning on how to automate teradata queries before I set it up for my main queries).I googled but could not find the crontab syntax exactly. Rather I found people talking about BTEQ, so gave it a try. (My colleague is running a SAS file like that using BGsas in place of BTEQ, but we are getting rid of SAS soon, so I wanted to do it using Teradata)Kindly help. Thank you very much.
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How to schedule a Teradata query in crontab?
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Seem that you want to run a job on every TUE and WED 's mid-night, and also want to run immediately when the application start at TUE or WED. Not aware and never heard cron expression can handle that "start immediately" behaviour. But you can use simply use@PostConstructto achieve it :public class CronJob {
@PostConstruct
public void onStart() {
LocalDateTime now =LocalDateTime.now();
if(now.getDayOfWeek() == DayOfWeek.TUESDAY || now.getDayOfWeek() == DayOfWeek.WEDNESDAY ) {
if(!now.toLocalTime().equals(LocalTime.MIDNIGHT)) {
doJob();
}
}
}
@Scheduled(cron="0 0 * * 2,3")
public void onSchedule() {
doJob();
}
public void doJob(){
//do the job
}
}
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I need some help from people with Cron knowledge. I'm trying to write Cron expression which should run weekly once on Tuesday and once on Wednesday starting immediately if it is Tuesday today. My current solution is:0 0 * * 2,3This expression runs Cron at 00:00 on Tuesdays and Wednesdays.
But it will not run if it is Tuesday today, because time is already ahead 00:00. If I set time to current hour and minute, let say 16:30, then Cron will start now on Tuesday, but then Wednesday will start at 16:30 as well. I want to start all next Сron events as soon as possible, i.e. on Wednesday's at 00:00Is it possible to solve this task at all? Many thanks for any effort to help.
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Cron expression: Run weekly on Tuesdays and Wednesdays starting NOW
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Cron doesn't setPATHlike your login shell does.As you already wrote in your question you could specify the full path ofsnowsql, e.g.#!/bin/bash
/path/to/snowsql --config /home/basant.jain/snowsql_config.conf \
...Note:/path/to/snowsqlis only an example. Of course you should find out the real path ofsnowsql, e.g. usingtype snowsql.Or you can try to source/etc/profile. Maybe this will set upPATHfor callingsnowsql.#!/bin/bash
. /etc/profile
snowsql --config /home/basant.jain/snowsql_config.conf \
...seeHow to get CRON to call in the correct PATHs
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I am trying to execute snowsql from an shell script which i have scheduled with cron job. But i am getting error like snowsql: command not found.I went through many links where they are asking us to give full path of the snowflake. i tried with that also but no luck.https://support.snowflake.net/s/question/0D50Z00007ZBOZnSAP/snowsql-through-shell-script. Below is my code snippet abc.sh:#!/bin/bash
set -x
snowsql --config /home/basant.jain/snowsql_config.conf \
-D cust_name=mean \
-D feed_nm=lbl \
-o exit_on_error=true \
-o timing=false \
-o friendly=false \
-o output_format=csv \
-o header=false \
-o variable_substitution=True \
-q 'select count(*) from table_name'and my crontab looks like below:*/1 * * * * /home/basant.jain/abc.sh
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snowsql not found from cron tab
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0 1 * * DJANGO_SETTINGS_MODULE=project_name.settings path_to_virtualenv/bin/python path_to_project/manage.py name_of_management_command.pythen in some app write a management command.
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I have a model in django in which one Integer field is there. I want to update that field every month using cron job.
Lets say 1st of every month the field would update .
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How to update django model field every month using cron?
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Running python from the virtualenv (/home/ubuntu/.virtualenvs/testcron/bin/python3) allows access to the venvsite-packagesbut it doesn't activate the venv. If you have something unusual inbin/activateyou have to source it every time you need it:* * * * * cd /home/ubuntu/test_script && . /home/ubuntu/.virtualenvs/testcron/bin/activate && /home/ubuntu/.virtualenvs/testcron/bin/python3 my_script.py
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I'm running a basic cron that requires environment variables which I've set up usingvirtualenvwrapper. The environment variables are set up in/home/ubuntu/.virtualenvs/testcron/bin/activateWhen I run the commandcd /home/ubuntu/test_script && /home/ubuntu/.virtualenvs/testcron/bin/python3 my_script.pythe script runs as intended with no errors. The script imports an environment variable and prints it.However, when I run the same script through a cron (* * * * * cd /home/ubuntu/test_script && /home/ubuntu/.virtualenvs/testcron/bin/python3 my_script.py) I get this error.Traceback (most recent call last):
File "my_script.py", line 7, in <module>
main()
File "my_script.py", line 4, in main
print(os.environ['SOME_ENV_VARIABLE'])
File "/home/ubuntu/.virtualenvs/testcron/lib/python3.5/os.py", line 725, in __getitem__
raise KeyError(key) from None
KeyError: 'SOME_ENV_VARIABLE'When I run the following I don't seem to have any issues~$ /home/ubuntu/.virtualenvs/testcron/bin/python3
>>> import os
>>> os.environ['SOME_ENV_VARIABLE']
'my_env_variable_value'Am I missing something obvious, do I have some issue with virtualenvwrapper's configuration or is there a catch to running crons in this way?
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Virtualenvwrapper environment variables when running crons
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To run cron every 5 minutes you need to add command like this:*/5 * * * * /home/cdh_infa_user/data/pladmin/MyLinuxAgent/apps/Data_Integration_Server/data/scripts/Secureagent.shTo run cron at 5 a clock you need record like this:0 5 * * * /home/cdh_infa_user/data/pladmin/MyLinuxAgent/apps/Data_Integration_Server/data/scripts/Secureagent.sh
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I am trying to run a crontab with the expression given below. But i am getting bad minute error.This is for a Linux Server.0/5 * * * * /home/cdh_infa_user/data/pladmin/MyLinuxAgent/apps/Data_Integration_Server/data/scripts/Secureagent.shDo i need to install crontab? Please guideenter image description hereenter image description here
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Error in cron: bad minute errors in crontab file, can't install
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I faced the similar situation and ssh-keygen comes to my help. You should make a copy of id_rsa and convert it to RSA type with ssh-keygen and then give that path to "key_filename"To Convert "BEGIN OPENSSH PRIVATE KEY" to "BEGIN RSA PRIVATE KEY"ssh-keygen -p -m PEM -f ~/.ssh/id_rsa
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This question already has an answer here:SSH key generated by ssh-keygen is not recognized by Paramiko: "not a valid RSA private key file"(1 answer)Closed3 years ago.Paramiko script is running great from interactive terminal using id_rsa. When run as a cron job suddenly it finds the id_rsa to be invalid. Test 777 permissions have been set on all related files to no avail. Logs show that the job is being run as the proper user.paramiko.ssh_exception.SSHException: not a valid RSA private key fileSo, it seems this if statement at end of block is being fulfilled only as cron job:
`def _read_private_key(self, tag, f, password=None):
lines = f.readlines()
start = 0
beginning_of_key = "-----BEGIN " + tag + " PRIVATE KEY-----"
while start < len(lines) and lines[start].strip()
!= beginning_of_key:
start += 1
if start >= len(lines):
raise SSHException("not a valid " + tag + " private key file")
`Any insights appreciated.EDIT: My code to load keytry:
client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.WarningPolicy)
client.connect(hostname = '<target>', key_filename = '/home/user/.ssh/id_rsa',username='root')
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paramiko only as cron job not valid RSA private key [duplicate]
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You need to load Wordpress functions manually, to use them in a custom script.require_once("../../../../wp-load.php");Also answered in depth here,How to include Wordpress functions in custom .php file?
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Setting:I have a wordpress site but disabledwp_cronto have the full control of cron.define('DISABLE_WP_CRON', true);Incrontab -e, I have following cron job:*/2 * * * * /usr/bin/php /var/www/cron/mycron.php init >> /var/log/error.log 2>&1Themycron.phphas a simple functionif (!empty($argv[1])) {
switch ($argv[1]){
case 'init':
cron_test();
break;
}
}
function cron_test() {
$time = date(DATE_RFC822, time());
write_log("Start:" . $time); //outputs debug to my own log file
};
function write_log($log){
if ( true === WP_DEBUG ) {
if ( is_array( $log ) || is_object( $log ) ) {
write_log( print_r( $log, true ) );
} else {
write_log( $log );
}
}
};Note that I declared themycron.phpinfunctions.phpfor wp:require_once('parts/mycron.php');Error log:In myerror.logfor the cron, I have the following error:PHP Warning: Use of undefined constant WP_DEBUG - assumed 'WP_DEBUG'So, I am guessing there is some sort of disconnection between cron and wp, which is my best guess.What I am trying to do:Themycron.phpwill have many wordpress functions that I would need. How do I make the cron to recognize thewp functionsuch asWP_DEBUG?Any help will be much appreciated.Thanks!
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wp functions not being recognized in cron job
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You've escaped the last % character heredate +\%d, you likely need to do the same with the first too:strftime("\%T")The issue being that cron converts % to a newline and sends the text after the % to stdin of the command, unless that % is escaped.
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Trying to run a VMSTAT every 10 minutes (every 600 seconds 144 times a day) but would like to append the time at the beggining of each line.0 00 * * * /usr/bin/vmstat 600 144|awk '{now=strftime("%T"); print now $0}' > /home/rory/rory_vmstat`date +\%d`I keep getting a message in my mail saying:/bin/sh: -c: line 0: unexpected EOF while looking for matching `''/bin/sh: -c: line 1: syntax error: unexpected end of fileThis works in the command line: /usr/bin/vmstat 600 144|awk '{now=strftime("%T"); print now $0}' so i'm not sure whats wrong.I'm sure its nothing too complex, I tried switching the ' and " round but no luck. Any help will be greatly appreciated :)
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VMStat ran everyday at midnight with the time before each entry
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Wordpress is not running as a background process so in order to use wordpress schedules you would need to set a cron job on your server which will trigger your wordpress site every minute or so and then wordpress will run your scheduled function twice per day.If you are not performing wordpress related task, you could just set a cron job to trigger the url you need. If you are using a shared hosting, most probably there is a an option to set a cron job. If you are running a VPS, then you would need to set a cron job by editing crontab.
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Can someone help me solve this problem. I'm newbie in php codingI need to run this URL twice a day via wordpress function.phphttps://sample.com/wp-admin/admin-ajax.php?action=run_scrapperI used this codes but it's not working.register_activation_hook(__FILE__, 'my_schedule');
add_action('execute_scrapper', 'do_this_daily');
function my_schedule() {
$timestamp = wp_schedule_event($timestamp, 'twicedaily', 'execute_scrapper');
}
function do_this_daily() {
wp_remote_get( 'https://sample.com/wp-admin/admin-ajax.php?action=run_scrapper', $args);
}
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Trigger URL to run twice a day
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in crontab*/15 * * * * /home/user/script.sh > /dev/null 2>&1in script.sh#!/bin/bash
source /srv/python/virtualenvs/proj/bin/activate
/srv/python/virtualenvs/proj/bin/python3.6 /srv/python/proj/Scripts/scheduling.py
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I'm facing a weird issue.I need to write a crontab which will invoke a python script, but I need to activate a virtualenv first. This is the crontab I wrote:SHELL = /bin/bash
MAILTO="[email protected]"
*/15 * * * * source /srv/python/virtualenvs/proj/bin/activate && /srv/python/virtualenvs/proj/bin/python3.6 /srv/python/proj/Scripts/scheduling.pyThe scriptscheduling.pytry to import data from an oracle DB usingCx_Oracle. Crontab gives me an error:[2018-12-05 14:45:02] ERROR - DB connection error: DPI-1047: 64-bit Oracle Client library cannot be loaded: "libclntsh.so: cannot open shared object file: No such file or directory". See https://oracle.github.io/odpi/doc/installation.htmlSo I obviously thought about an error related to Oracle and librarycx_Oracle.
The weird thing is that if I enter in the linux shell and dosource /srv/python/virtualenvs/proj/bin/activateThen typepythonto open a python shell then:import cx_Oracle
import pandas
con = cx_Oracle.connect('parameter_connection')
query = 'select * from tab1 fetch first 5 rows only'
pd.read_sql(query, con = con)it works and gives me query result. I suspect that incrontabthe virtualenv is not activated properly.Any ideas? Thanks
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virtualenv not activated from crontab on Linux Centos
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From the man page for crontab (my emphasis):Note: The day of a command's execution can be specified by two fields - day of month, and day of week. Ifbothfields are restricted (i.e., aren't*), the command will be run wheneitherfield matches the current time.For example,30 4 1,15 * 5would cause a command to be run at 4:30 am on the 1st and 15th of each month,plusevery Friday.So, in your case, the job runs on every one of the first seven days in each month,plusevery Monday.You can do what you wish by adding anANDcondition in the command rather than relying on anORcondition in the time specification, something like:40 08 1-7 * * test $(date +\%u) -eq 1 && /fs/test/testtime.shThis will run the actual cron job onallthose days (first seven days in each month) but thepayload(the script) will only run if the day is Monday.
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I had configured my cronjob to run in every first Monday of the month 8:40am as below40 08 1-7 * 1 /fs/test/testtime.shBut it not only run on Monday, it also run on today which is Tuesday.Is there anything i miss out?
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Cron job run at the wrong time in AIX 7.1
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When you by default opennano Input_fileit opens it up in INSERT mode(unlikeviwhere we have to explicitly go to INSERT mode by pressingikey). Now when you have doneCTNRL+Oit will then ask you if you want to save changes to opened file or not eg-->File Name to Write: Input_fileIf you press ENTER then it will save it and will be back on the screen(to your Input_file) where you entered new line. Now you could pressCONTRL+Xto come out of Input_file. May be you are stuck after saving it and want to come out then try this out once?
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I have a bash script that I can execute withcd ~/Documents/Code/shhh/ && ./testyif i'm in any directory on my computer and that successfully pushes to github which is what i want.I'm trying to schedule a cron job to do this daily so I rancrontab -ewhich opens a nano editor and then I put30 20 * * * cd ~/Documents/Code/shhh/ && ./testyto run daily at 10:30pm and hit control O, enter and control X. But still it it didn't execute. When I typecrontab -lit shows my command & I have aYou have new mail.message when I open a new window. Still my command doesn't execute even though it will when I run it from any other directory.I think my crontab job is at/var/at/tmpso I ran30 20 * * * cd ../../../Users/squirrel/Documents/Code/shhh/ && ./testybut still nothing, even though it does work when I write it out myself from that directory. Sidenote, I can't enter into the tmp folder even after using sudoOK When I type inmailI see a lot message and inside i get this error---------------Checking Status of 2---------------
[master 0c1fff8] hardyharhar
1 file changed, 1 insertion(+), 1 deletion(-)
fatal: could not read Username for 'https://github.com': Device not configured
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How do i execute this cron job from a mac?
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I would expect it to work like that since you have chosen the node by opening its backoffice. You could also choose the node you want to run the cronjob on by accessing its backoffice. Which node you access depends on the URL you enter.
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In our application if we start a cron job manually from the BO, it ignores the already set nodeGroup and instead it starts on the current server node. (If it is triggered by a time based trigger it starts correctly on the set nodeGroup.)Is it on purpose or is it a bug? Are we missing something?Hybris version is 5.7.
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Hybris cron job manual start ingores nodeGroup settings
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So the reason seems to be that crontab has the $PATH variable set to a different value from the user $PATH. To fix it, I just had to set the wanted value in the cron file, just above the schedule lines:PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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I am using a python 3.6 script in a Raspberry Pi Zero W that contains the following lines:import subprocess
result = subprocess.run(['which', 'node'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
nodeCmd = result.stdout.decode("utf-8").replace('\n', '')
print(nodeCmd)
result = subprocess.run([nodeCmd, './script.js'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)The script tries to find the node binary and make a call to a js script. When ran manually, the program works OK, but when I schedule the call through crontab, thenodeCmdvariable appears blank (instead of/usr/local/bin/node) and I get the following error:[Errno 13] Permission denied: ''What is going on here? Is this a permissions issue?
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Python subprocess call through crontab not working
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Check what is your.spec.successfulJobsHistoryLimitin job spec. DefaultsuccessfulJobsHistoryLimitis 3.Ref:Jobs History Limits
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I am using spring cloud dataflow on kubernetes to run my batch jobs as tasks. I have put a scheduler which runs the job every hour. EVenthough in the UI I can see that there have been about 30 executions, in the kubernetes UI or terminal I can only see the pods and jobs of the last 3 executions. So I wanted to know if the scheduler deletes all the previous pods and if so how can I change that lifecycle.
|
Pods lifecycle when launched using cronjobs in kubernetes from spring cloud datfalow
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Airflow support the use of cron expressions.schedule_intervalis defined as a DAG arguments, and receives preferably a cron expression as a str, or a datetime.timedelta object. Alternatively, you can also use one of these cron “preset”:None, @once, @hourly, @daily, @weekly , @monthly, @yearly.As I see, the timezone awareness is correct, but schedule interval should be change.args=dict(
owner = 'airflow',
start_date=datetime(2018, 11, 7, 13, 5, tzinfo=local_tz), # 1:05 PM on Nov 7
)
dag=DAG(dag="dagname_here",
default_args=args,
schedule_interval='05 */1 * * 1-5' #should be string)NOTE: Please be reminded that if you run a DAG on a schedule_interval of one day, the run stamped 2016-01-01 will be triggered soon after 2016-01-01T23:59. In other words, the job instance is started once the period it covers has ended.For reference:Airflow Scheduling
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I have a cronjob that runs with the cron schedule interval05 */1 * * 1-5. Or asCrontab Gurusays, “At minute 5 past every hour on every day-of-week from Monday through Friday.” (in EST instead of UTC)?How can I convert this into a 'America/New_York'timezone awareAirflow DAG that will run the same exact way?I asked aprevious questionon timezone aware DAGs in Airflow but it is not apparent to me in the answer or in the Airflow documentation how to make the jump from a DAG that has astart_datewithtzinfoand aschedule_intervalthat mimics a cronjob.I am currently trying to use a DAG with themy_dag.pyfile as follows:from airflow import DAG
from airflow.operators.bash_operator import BashOperator
from datetime import datetime, timedelta
import pendulum
local_tz = pendulum.timezone("America/New_York")
default_args=dict(
owner = 'airflow',
start_date=datetime(2018, 11, 7, 13, 5, tzinfo=local_tz), # 1:05 PM on Nov 7
schedule_interval=timedelta(hours=1),
)
dag = DAG('my_test_dag', catchup=False, default_args=default_args)
op = BashOperator(
task_id='my_test_dag',
bash_command="bash -i /home/user/shell_script.sh",
dag=dag
)However, the DAG never gets scheduled. What am I doing wrong here?
|
How to convert an Airflow DAG with cron schedule interval to run in America/New_York?
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Use option "filterFile"Every file has modified timestamp and you can use this timestamp to filter file that are older than 1 week. Underfile component, there exist an optionfilterFilefilterFile=${date:file:yyyyMMdd}<${date:now-7d:yyyyMMdd}Above evaluation comes fromfile language,${date:file:yyyyMMdd}denote modified timestamp of the file in form (year)(month)(day) and${date:now-7d:yyyyMMdd}denote current time minus 7 days in form (year)(month)(day).
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I am using the file component with an argument quartz scheduler in order to pull some files from a given directory on every hour. Then i transform the data from the files and move the content to other files in other directory. After that I am moving the input files to an archive directory. When a file is moved to this directory it should stay there only a week and then it should be deleted automatically. The problem is that Im not really sure how can i start a new cron job because I dont really know when any of the files is moved to that archive directory. Maybe is something really trivial but I am pretty new to camel and I dont know the solution. Thank you in advance.
|
Quartz Scheduling to delete files
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It is possible:0 10,12,16,20 * * * /path/to/execute/fileHere's a quick tutorial for better working withcron
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I need to run job daily at 10, 12, 16 and 20 hours.
I know that I can create 4 cron jobs like this:0 10 * * * /path/to/execute/file
0 12 * * * /path/to/execute/file
0 16 * * * /path/to/execute/file
0 20 * * * /path/to/execute/fileI'm curious, is it possible to arrange this tasks in single cron task?
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Crontab at specific time oneliner
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A more cloud-friendly approach is to useAWS Systems Manager, which has aRun Commandfeature. This allows a script to be run on multiple Amazon EC2 instances (and even on on-premises computers if they have an Agent installed).The Run Command can be triggered on a schedule through CloudWatch Events and it can run the same command on multiple instances, such as any that have a particular tag. It can report back the success or failure of the script on each instance.The Systems Manager agent is installed by default on Windows Server 2016 instances and instances created from Windows Server 2003-2012 R2 AMIs published in November 2016 or later. Or, you canInstall Systems Manager Agent on Windows Instances.
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I have a number of config files that change a couple of times a month that need to be copied to about 6 EC2 instances. I believe the most efficient way to do this is with a series of scp command in a batch file stored on a windows pc, for example:
sudo scp -i "C:\cygwin64\home\Ken\ken-key-pair.pem" \Users\Ken\testcyg2.txt[email protected]:/var/www/html/folder-owned-by-ec2-user/testcyg2.txtThis command works, as long as the owner of the folder is ec2-user. My question is how copy the files to folders owned by the "root" user.I am not sure this is possible using the aws cli, so I thought I should use the command above, and then a cronjob to take the files from the folder owned by ec2-user, and copy them to a folder owned by the root user.I put the following command in a crontab, but it does not seem to work:
*/5 * * * * cp /var/www/html/temp4configs /var/www/htmlI even created another crontab using sudo crontab -e, since I was logged in as ec2-user.
I do not get any error messages.Is there a better way to do this, or is there anything I am doing wrong?
Thanks!
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copy file using CLI to AWS EC2 as ec2-user
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I thinknodejscould be a good choice,cause you can usepm2orforeverfor schedule a container execution.
You can also use good features likeQueueORstop/resumemechanism , and various libraries for scheduling likeBull,Kue,Bee,Agenda
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We are working on an application which gonna handleSMSsending in schedule , we havewindows serverand we useTask Schedulerof windows for this purpose .
Actually I am not okay with this tool that windows provided for us , we usenodejsfor message sending andphpfor messagequeuingfor nodejs. we havenode-cronand it is really cool for node side , but inphpside we use windows task scheduler.we could use node-cron to callwgetfor php and remove windows task scheduler . Is this a good choose ? which one do you prefer ?thanks in advance .
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Windows task scheduler Vs. node cron schedule
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I created aset-rate.shfile using:touch set-rate.shchmod +x set-rate.sh- make it executableNODEPATH=$(which node)
export NODE_ENV="production"
PROCESS="$NODEPATH /home/ubuntu/git/web3-tools/src/scripts/crowdsale/set-crowdsale-rate.script.js"
cd /home/ubuntu/git/web3-tools/
$PROCESSNOTE:cdinto the directory where you interact with yournode_modules. Add the absolute node path.crontab -e* * * * * /home/ubuntu/set-rate.sh >> /tmp/cron-log.txt 2>&1NOTE add a space at the end of the file
`
To help debug my issue - I added a log to the cron job.
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I have configured a crontab -e to run every 1 minute. I have tested it to run via terminate with success. When running in crontab it doesn't progress.which node: /usr/bin/nodeuser: ubuntu*/1 * * * * cd /home/ubuntu/git/web3-tools/ && /usr/bin/node /home/ubuntu/git/web3-tools/src/scripts/crowdsale/set-crowdsale-rate.script.jsI feel it has something to do with Node_Modules and cron launching from the root directory.Any help would be great.
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crontab not running node.js
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If you break your cronjob into two, it would look like:* 8-19 * * * command
0-30/1 19 * * * commandfirst line runs every minute from 8-19, and second line every minute from 19-19:30.
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I can't figure out how to create a job that ends at a specific hour and minute
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Cron Schedule for a job that runs every minute from 8 am to 7:30 pm
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The solution, after I was advised to add the extra crontab info to get useful data out of the log file, was to utilize the full path to the exact python executable needed instead of letting cron use whatever python it likes most, which I am guessing is the default 2.7 on Ubuntu server. So if you want to force cron to use Python 3.7, use the full path:#!/bin/sh
/usr/local/bin/python3.7 /home/scripts/py/getprice.py
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I am running Python 3.7 on Ubuntu Server 16.04, and I have a really basic Python script that runs fine from the command line, and it runs fine via a simple shell script, and when I setup a cron job via crontab -e, or webmin, cron jobs will appear in the logs as having happened. However, the script doesn't actually run, as I have it set to log itself, and it logs nothing. Can anyone tell me what I am missing here?my shell script (getprice.sh):#!/bin/sh
python3.7 /home/websites/www.coin-stack.com/py/getprice.pymy python code (getprice.py):#!/usr/bin python3.7
import requests
import json
import logging
# ******************************* Settings *****************************************************************************
# Logging Setup
debug_level = 'INFO'
logging.basicConfig(level=logging.INFO, filename='run.log', format=' %(asctime)s - %(levelname)s - %(message)s')
logger = logging.getLogger(__name__)
crawl_queue = []
delay = 60
url = 'http://www.somedomainoranother.com/?p=somepage'
# **********************************************************************************************************************
def main():
data = get_prices(url)
data = json.loads(data)
# Bitcoin
btc = data['BTC']
btc = btc['USD']
return btc
def get_prices(url):
resp = requests.get(url=url)
data = resp.content
return data
main()my cron job:*/10 * * * * /home/websites/www.mydomain.com/py/getprice.sh
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Weird Python Cron Job Issue
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The default pattern for filenames is(^_?([a-z0-9_.]+-)+[a-z0-9]+$)Which means files such as00-initwould match.Typically no file extensions (such as.php)Hence either rename your files, or userun-partswith the--regex='[\w\.]+'option.Also check with-v --listwhat filenames get detected then.
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I am following atutorialabout cron jobs for linux. I want to use thecron.hourlyfolder to run php scripts. In the tutorial, it states that the folders are controlled by the script:SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/
# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthlyI can easily run and test the script using:$ /etc/cron.hourly/test.phpThis works fine. But when I test the script:$ run-parts /etc/cron.hourlyNothing happens. Doesrun-partswork on php files?run-parts --test /etc/cron.hourlygives me nothing
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Linux run-parts not working with php files
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Unfortunately,crondoesn't support dependency between jobs, so you have to handle this yourself. You have basically two options:Merging the tasks into a single oneHaving a flag somewhere that lets Task-n know if Task-n-1 has finished successfullyYour life will be much simpler if you're able to merge the tasks, as you can use the tools you're used to in JavaScript. If not, you could do something like:Async Task-1 queries the DB and saves the result to a known place (e.g.2018-08-31-task-1-results.csv)Async Task-2 checks if2018-08-31-task-1-results.csvexists. If it does, it knows that the previous task was successful, and can process the file and save the output to another file (e.g.2018-08-31-task-2-results.csv)Async Task-3 proceeds similarly as Async Task-2.In other words, the tasks aren't dependent on each other directly, but on the output generated by the previous tasks. This allows you to re-run the tasks and have a log on their outputs. My example was using files, but it can be anything that all tasks can access, like an intermediate table.In the future, if you keep having to handwrite these dependency chains, I'd suggest considering one of the many task pipeline frameworks likeLuigiandAirflow.
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I need to run a CronJob that performs three inter-dependent async tasks, at certain interval that is mentioned in the CronJob config.Async Task-1: Query Table to fetch results on a particular criteriaAsync Task-2: Perform a async operation on the results fetched in Task-1Async Task-3: Update Table entries for corresponding Ids with operation performed in Task-2.I am unable to figure out,what would happen if the next the next interval of CronJob begins before the tasks of first interval end.And how can this be managed.More specific question:Is there a way in which I can maintain a sync between the sql table and tasks being performed, so that if anUPDATE TASKis pending in one cycle, it doesnt perform the same task in the next cycle.I am usingnode-cronnpm module for developing the CronJob.
|
How to handle a CronJob that queries and updates a Table in SQL Database using nodejs?
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A simple way of doing this is using Netcat. The commandnc -z localhost 19999will check if there is something in the local port 19999 listening, so you could use:nc -z localhost 19999 || ssh -fN -R 19999:localhost:22 -i aws-mycert.pem[email protected]to recreate the tunnel if needed.However, this only checks that the tunnel is up, but it might be stale. The best solution is to useautossh. Just install it in your machine and use:autossh -M 0 -o "ServerAliveInterval 30" -o "ServerAliveCountMax 3" -fN -R 19999:localhost:22 -i aws-mycert.pem[email protected]Then you just need to run this command when the server starts, which depends on your distribution.You can find more details on using autossh athttps://www.everythingcli.org/ssh-tunnelling-for-fun-and-profit-autossh/.
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I'm establishing a reverse tunnel with$ ssh -fN -R 19999:localhost:22 -i aws-mycert.pem[email protected]and need to make sure it stays up & running even past a server reset. How can I check for the connection in a cron script that then re-establishes the connection autiomatically when required?
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check and auto re establish reverse ssh tunnel
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@Ahmad: Try this SolutionTry adding full path in file_put_contents() function and giving appropriate folder permission.ex:file_put_contents(__DIR__ . DIRECTORY_SEPARATOR . "{$today}.log", "log file created")
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I have setup a crontab job to run every hour.m | h | d | M | w | command
--|---|---|---|---|----------
0 | * | * | * | * | php path/job.phpInside job.php I have this code:<?php
$today = date('Y-m-d');
echo "echo: Today is $today <br>";
printf("printf: Today is $today \n");
file_put_contents("/path/$today.log","log file created");
exit();When I visitjob.phpon my browser, I see the expected output:echo: Today is 20-08-2018printf: Today is 20-08-2018And a new file20-08-2018.logis created.However, when the crontab runs thisjob.php, I get an email notification of the output generated by the job, and it only contains:printf: Today is 20-08-2018Moreover, I check if the file is generated/appended, but fail to find any evidence of the file getting generated (even if I delete all log files before waiting for the crontab to run the job).How can this be explained?
What can I do to makefile_put_contentswork when a crontab job is automatically triggered?Edit: I forgot to mention that I have checked forphp_errorlogsuspecting something went wrong when crontab triggers the job, but failed to find any error.
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echo() and file_put_contents() not working when triggered by crontab job
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In terms of debugging, this would be like any other task profiling the application with something likexdebugandkcachegrind. To ensure that processes do not run for too long you can limit themax_execution_timefor thePHP.inifor theCLI.To then let theCLIprocess run for a long time, but only just enough time add something to set the max execution time on a per row basis:$allowed_seconds_per_row = 3;
foreach($rows_to_process as $row){
set_time_limit($allowed_seconds_per_row);
$this->process($row);
}You can alsoregister a shutdown functionto record the state as the script ends.It is likely that the memory is a key cause for failure and debugging focused on thememory usageand that can be controlled byunsettingvariable data as needed.
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I've got a sever which has an action triggered by a frequent cron job.This is a php application build on Silverstripe (4.0).The issue I'm facing is the php processes stay alive and also keep database connections open. This means after a few days the site stops working entirely once SQL stops accepting new connections.The system has two tasks on cron jobs;One takes a massive CSV file and spits it into smaller sub files which are then imported into the database. This one uses a lock file to prevent it running into a previously running instance. I'm not too sure if this is working.The second task processes all the records which have been updated in large batches.Either of these could be the source of the overloading but I'm not sure how to narrow it down.What's the best way to diagnose the source of the issue?
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Sever code spawing too many instances of php
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You might want to look into using a library that already did this instead of re-inventing the wheel yourself.https://packagist.org/packages/peppeocchi/php-cron-schedulerBut, if you'd really want to code it yourself you'll need to have "two variables" one with last executed which has to be read from a file or database in between execution cycles, one with interval and have cron call your script every second/minuteTake a look at the proof of concept code here. Untested but it should point you in to how it should work in theory.class Job
{
protected $interval = 0;
protected $lastrun = 0;
protected $job = null;
protected $filename = null;
public function __construct($id, $interval,callable $job)
{
$this->interval = $interval;
$this->job = $job;
$this->filename = __DIR__.'/'.$id.'.job';
$this->lastrun = file_get_contents($this->filename) ? : 0;
}
public function attemptRun($time)
{
if($time - $this->lastrun >= $this->interval) {
$this->run($time);
}
}
protected function run($time)
{
file_put_contents($this->filename, $time);
$this->job();
}
}
$jobs = [
new Job('addition', 10, function() { $a = 1; $b = 2; $c = $a + $b;}),
new Job('subtraction', 20, function() { $a = 1; $b = 2; $c = $a - $b;}),
];
var $currentTime = time();
foreach($jobs as $job) {
$job->attemptRun($currentTime);
}
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I have a thousand (for example, could be more) strings and for each string, there is a field associated with it which representstime interval.For each one of the strings, I need to perform a task which takes the string as input and produces some output, everyXminutes (Xbeing the time interval mentioned above).If it was a single value of time interval for all the strings, then I would set up a single cron job and that would suffice; but I have a different value of time interval for each of the strings.So I'll set up a thousand or more cron jobs. That does not feel right. So what would be the best way to solve this problem?
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Given array of 1000 strings wih an associated time-interval value X for each, how do I perform a task for each of the strings, every x minutes?
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The simple solution can be something like thatimport datetime
from time import sleep
rest_seconds = 3600 # sleep for one hour, so the task won't be called few times per hour
while True:
if datetime.datetime.now().hour == 12:
do_task()
sleep(rest_seconds)If you need a complex one, I useAirflowframework for building scheduled tasks/pipelines
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I have a python script in file calledtasks.pycontaining multiple tasks, processes and functions (and it works perfect to me).i want to run this file (tasks.py) at certain time ( 1:00 am & 4:45 am & 11:35 am & 6:25 pm & 9:10 pm) every day starting from date say as example 6 aug 2018.so i created a new file and called itrun.pyi used the following code to importtasks.pyfile#!/usr/bin/python
import tasksbut i want to schedule this import in the certain times as mentioned above starting from the required datei triedwhilefunction,schedulemodule,cronmodule andimport osbut i failed with allany body can help please ????
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python schedule to run another file.py every certain time
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In order to check the time a file was last edited you want to include two libraries.import os.path, timeFirst thing you have to take into consideration is which field you want to use from a file, for example:print("Last Modified: %s" % time.ctime(os.path.getmtime("file.txt")))
# Last Modified: Mon Jul 30 11:10:21 2018
print("Created: %s" % time.ctime(os.path.getctime('file.txt')))
# Created: Tue Jul 31 09:13:23 2018So you will have to parse this line and look for the fields you want to consider older than x date. Take into consideration to look through the string forSun, Mon, Tue, Wed, Thur, Fri, Satfor the week values.fileDate = time.ctime(os.path.getmtime('file.txt'))
if 'Sun' not in fileDate:
# Sun for Sunday is not in the time string so check the date and timeYou will have to loop through the files in the subdirectory, check the Created time or Last Modified time, whichever you prefer, and then parse the date and time fields from the string and compare to your case, removing those which you seem fitting to be deleted.
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I wanted to find the solution where deleting all the files in thesubdirectoriesas well older than x days and should not delete if the file was created onSundayMy Main Folder Path is C:\Main_Folder within than I have the structure,+---Sub_Folder_1
| Day1.xlsx
| Day2.xlsx
| Day3.xlsx
|
+---Sub_Folder_2
| Day1.xlsx
| Day2.xlsx
| Day3.xlsx
|
\---Sub_Folder_3
Day1.xlsx
Day2.xlsx
Day3.xlsxI tried with below code but it deletes even subdirectories as wellimport os, shutil
folder = 'C:\\Main_Folder\\'
for the_file in os.listdir(folder):
file_path = os.path.join(folder, the_file)
try:
if os.path.isfile(file_path):
os.unlink(file_path)
elif os.path.isdir(file_path): shutil.rmtree(file_path)
except Exception as e:
print(e)
|
How to delete all the files in sub directories older than x days and not created on Sunday in Python
|
For killing the job:0 18 * * 0,1,2,3,4 /usr/bin/pkill -f MotionDetector.pypkillkills a process by name. While the default search criteria is to find the process by its full name,-fargument allows you to search by any of the parts in the process name.Updated solution to account for the scenario raised by@håken-lid:When the script is executed by cron or by the user, the process name would be in the format:cron:/home/pi/venv/bin/python /home/pi/MotionDetector.pyuser:python MotionDetectory.pyUsing simple regex patterns we can kill the process started by,cron or user:0 18 * * 0,1,2,3,4 /usr/bin/pkill -f 'python.*MotionDetector.py'only cron0 18 * * 0,1,2,3,4 /usr/bin/pkill -f ^'/home/pi/venv/bin/python /home/pi/MotionDetector.py'
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My goal is to run my python script each day (besides Friday and Saturday) at 10:00 and terminate it by 18:00.I added the following to the crontab but the second command isn't working.0 10 * * 0,1,2,3,4 /home/pi/MotionDetector.py
0 18 * * 0,1,2,3,4 /home/pi/MotionDetector.py killall -9 MotionDetector.pyUsing Linux 2.7.9I triedthissolution that worked Via the terminal but not in cron (when I typed the command in the terminal it closed the script right away but when I put it on the crontab it didn't do anything)
|
Stop / Kill a Python script using cron
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You can try this. use useProcess.Startand set url as second parameter.string a = "https://notepad-plus-plus.org/repository/7.x/7.5.7/npp.7.5.7.Installer.exe";
string b = "https://notepad-plus-plus.org/repository/7.x/7.5.7/npp.7.5.7.Installer.exe";
Process.Start("chrome.exe", a);
Process.Start("chrome.exe", b);
|
I have created a console app in which i want to trigger multiple links at a specific time.after searching I have done something like this:using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;
using System.Threading.Tasks;
namespace cronjob_Test_App
{
class Program
{
static void Main(string[] args)
{
StartProcess();
}
public static void StartProcess()
{
// Process.Start("https://notepad-plus-plus.org/repository/7.x/7.5.7/npp.7.5.7.Installer.exe");
var psi = new ProcessStartInfo("chrome.exe");
string a, b;
a = "https://notepad-plus-plus.org/repository/7.x/7.5.7/npp.7.5.7.Installer.exe";
b = "https://notepad-plus-plus.org/repository/7.x/7.5.7/npp.7.5.7.Installer.exe";
psi.Arguments = a;
Process.Start(psi);
psi.Arguments = b;
Process.Start(psi);
}
}
}it starts all the links simultaneously.I want the first link to complete and then start the second one.how can I do it or if there is some other good way please suggest.
I am using windows scheduler along with this console app to start the console app at a specific time.
|
How to open multiple http links from my console app?
|
yourdateformat is incorrect, check outdate --helpand experiment.this also goes for actually testing the command in its entirety before installing it as a scheduled command; i.e. run./script.py > "/target/folder/$(date).log"command in your terminal to make sure it actually works,thenyou can put it into the crontab.this should fix your existing entry;0 * * * * /home/user/Projects/example.py > "/home/user/Projects/cron_logs/$(date +\%d\%m\%y_\%H\%M\%S).log" 2>&1this would create log files with filenames looking like this :090718_234854.log(I would also suggest looking atISO-8106(e.g.date --iso-8106=s)
|
I'm trying to run a cron job on Python3 that runs once every hour, and writes to a new log file each time. My code is currently:0 * * * * /home/user/Projects/example.py > /home/user/Projects/cron_logs/'`date +\%d\%m\%y_\%H\%M\%S`'.log 2>&1There were other questions asked here that I used to put together that line, but it isn't working. It creates a file titleddate +\%d\%m\%y..., and I can't even open the file. What am I doing wrong?
|
Cron job write to a new file every time it runs
|
You can fix it in two different ways.To provide full path to the script /home/ajain/testscript.sh. Here you don't even need to addbashbecause you have clearly mentioned in whichshellyour script should run i.e. first line of your script#!/bin/bashAdd this line before executing the scriptset path=$path:/home/ajain/
testscript.sh # no need to use bash in front of itAlso providing execution permission to a script is not just enough. You need to check whether the user who is going to execute the script has permission to the location of the script or not. That means whether user can do acd /home/ajain/or not.Hope this will help you.
|
I am not in the root,
I entered the following commands in the crontab:*/1 * * * * /home/ajain/testscript.shThe file testscript.sh has the following commands:#!/bin/bash
echo "The script begins now"
ping -c 2 live.com
echo The script has been run on `date` >> /home/ajain/testscript.log
echo "The script ends now"
exitThe crontab is not giving the results, however, the following command is giving the result in the testscript.log file correctly, displaying the ping date.bash testscript.shWhy is the crontab not working?
|
Crontab not giving results
|
SELECT *
FROM pkg_data
WHERE scan_date > CURRENT_DATE - INTERVAL '3 months'Be careful — Redshift works in UTC, so theCURRENT_DATEmight suffer from timezone effects and be +/- what you expect sometimes.SELECT
CURRENT_DATE,
(CURRENT_DATE - INTERVAL '3 months')::dateReturns:2018-06-21 2018-03-21Also be careful with strange lengths of months!SELECT DATE '2018-05-31' - INTERVAL '3 months'returns:2018-02-28 00:00:00Notice that it gave the last day of the month (31st vs 28th).By the way, you can useDATE '2018-05-31'or'2018-05-31'::DATE, and alsoINTERVAL '3 months'or'3 months'::INTERVALto convert types.
|
I have a table(pkg_date) in redshift. I want to fetch some data for every date for the last 3 months.Here is my queryselect * from pkg_data where scan_date < current_date;How can I use current_date as a variable in the query itself and run this query for every date from April 1.I have set a cron job which will run in every hour. In every hour it should run with different current_date
|
How to run a query for every date for last 3 month
|
Built on that question,Concatenate in bash the output of two commands without newline character, I have got the following simple solution:wget -O - https://example.com/operation/lazy-actions?lt="$(cat /home/myaccount/www/site/aToken.txt)" >/dev/null 2>&1Where it able to read the contents of the text file and then echoed to the command stream.
|
I have followed up this question successfully,Using CRON jobs to visit url?, to maintain the following Cron task:*/30 * * * * wget -O - https://example.com/operation/lazy-actions?lt=SOME_ACCESS_TOKEN_HERE >/dev/null 2>&1The above Cron task works fine and it visits the URL periodically every 30 minutes.However, the access token is recorded in a text file found in/home/myaccount/www/site/aToken.txt, theaTokenfile is very simple text file of one line which just contains the token string.I have tried to read its contents and pass, usingcat, it to the crontab command like the following:*/30 * * * * wget -O - https://example.com/operation/lazy-actions?lt=|cat /home/myaccount/www/site/aToken.txt| >/dev/null 2>&1However, the above solution has been failed to run the cronjob.I edit Cronjobs usingcrontab -eusing nano on Ubuntu 16.04
|
Concatenate file output text with Crontab
|
Remembercronruns with a different environment then your user account orrootdoes and might not include the path tologkeysin itsPATH. You should try the absolute path forlogkeys(find it withwhich logkeysfrom your user) in your script. Additionally I recommend looking atthis answer on serverfaultabout running scripts like they are running fromcronwhen you need to find out why it's working for you and not in a job.
|
I have a bash script which I want to run as a cron job.
It works fine except one command.
I redirected its stderr to get the error and found out that the error it shows was the command not recognized.
It is a root crontab.
Both the current user and root execute the command successfully when I type it in the terminal.
Even the script executes the command when I run it through the terminal.Startup script :#!/bin/bash
sudo macchanger -r enp2s0 > /dev/null
sudo /home/deadpool/.logkeys/logger.sh > /dev/nulllogger.sh :#!/bin/bash
dat="$(date)"
echo " " >> /home/deadpool/.logkeys/globallog.log
echo $dat >> /home/deadpool/.logkeys/globallog.log
echo " " >> /home/deadpool/.logkeys/globallog.log
cat /home/deadpool/.logkeys/logfile.log >> /home/deadpool/.logkeys/globallog.log
cat /dev/null > /home/deadpool/.logkeys/logfile.log
cat /dev/null > /home/deadpool/.logkeys/error.log
logkeys --start --output /home/deadpool/.logkeys/logfile.log 2> /home/deadpool/.logkeys/error.logerror.log/home/deadpool/.logkeys/logger.sh: line 10: logkeys: command not found
|
Crontab not recognising command
|
Try adding at the beginning of the script:chdir("/home/ec2-user/neu");Or use the absolute path to the file.The cron job might be executed from another directory and thetest.phpfile doesn't exist there.If it still doesn't work check the selinux configuration if your computer has it installed.
|
I wrote that cronjob:*/1 * * * * /usr/bin/php /home/ec2-user/neu/test.php >> /home/ec2-user/neu/log.log 2>&1I used that code sample (test.php):<?php
$filename = 'test.txt';
$somecontent = "Add this to the file\n";
// Let's make sure the file exists and is writable first.
if (is_writable($filename)) {
// In our example we're opening $filename in append mode.
// The file pointer is at the bottom of the file hence
// that's where $somecontent will go when we fwrite() it.
if (!$handle = fopen($filename, 'a')) {
echo "Cannot open file ($filename)";
exit;
}
// Write $somecontent to our opened file.
if (fwrite($handle, $somecontent) === FALSE) {
echo "Cannot write to file ($filename)";
exit;
}
echo "Success, wrote ($somecontent) to file ($filename)";
fclose($handle);
} else {
echo "The file $filename is not writable";
}
?>But it doesnt work with the cronjob.In the log file (log.log):test.txt is not writablePermission: -rwxrwxrwx 1 root root 21 Jun 1 17:21 test.txtHowever in the Terminal it does:php test.php
[root@ip-172-31-39-112 neu]# php test.php
Success, wrote (Add this to the file
) to file (test.txt)[root@ip-172-31-39-112 neu]#How do I solve that permission problem?Thx
|
Cronjob: fwrite in php
|
The error is complaining about this:string strCronExpression = noonJob + "|" + midnightJob;which will produce the string0 0 0 * * ? | 0 0 12 * * ?as the cron expression.Where did you get the idea you can string 2 cron expressions together like that? I can't find (from an admittedly brief search) any evidence that it's a valid syntax. The error is clearly telling you that it doesn't understand the information you're providing.Anyway if you just want it to run twice daily (midnight and noon) I'm pretty sure you can give that instruction in one single cron expression. I think you can use the expression0 0 0,12 * * ?to get that schedule.Of course if you want to define two totally different schedules which are not describable in a single expression), you'd probably need two entirely separate jobs (even if they execute the same command).
|
I am trying to schedule a job using the Quartz.NET package, but I cannot get it working. I tried the following code but I am getting an exception:Illegal character after '?': |My schedule job should run twice a day. Once at noon (12:00) and once at midnight (00:00). Here are mycronexpressions.0 0 0 * * ?0 0 12 * * ?Here is the code:public class JobScheduler
{
public async static void Start()
{
string noonJob = "0 0 0 * * ?";
string midnightJob = "0 0 12 * * ?";
string strCronExpression = noonJob + "|" + midnightJob;
IScheduler scheduler = StdSchedulerFactory.GetDefaultScheduler().Result;
scheduler.Start().Wait();
IJobDetail job = JobBuilder.Create<MyJobClass>().WithIdentity("MyJobKey", "MyJobGroup").Build();
ITrigger trigger = TriggerBuilder.Create()
.WithDescription("MyJobKey")
.WithIdentity("MyJobKey", "MyJobGroup")
.WithCronSchedule(strCronExpression)
.StartAt(DateTime.UtcNow)
.WithPriority(1)
.Build();
bool isExists = scheduler.CheckExists(job.Key).Result;
if (isExists)
{
await scheduler.RescheduleJob(new TriggerKey("MyJobKey", "MyJobGroup"), trigger);
}
else
{
await scheduler.ScheduleJob(job, trigger);
}
}
}
|
Quartz.net WithCronSchedule 'Illegal character after '?': |' c#
|
There is a way to runwheneverdynamically. Just add this line to the top of yourschedule.rb:require "/home/username/appname/config/environment.rb"That allows you to use all your models class on the schedule.rb. For example:every 1.day, :at => (Booking.last.event_time - 1.hour).strftime('%I:%M %p') do
...
endAlso, you can use the environment variable to set the time too.Don't forget update crontab when time change:system 'bundle exec whenever --update-crontab'But cron uses to run schedule jobs (commands or shell scripts)periodicallyat fixed times. So, whenever isn't better solution for you. As iGian wrote at his comment - check thistopic: delay job(sidekiq or similar) is more relevant to that job.
|
I am using the whenever gem, to handle my cron jobs.
I have an events and bookings rails application where I have an events and a bookings table.I want to send out a mailer, with all the bookings for an event to the event organizer an hour or so before the event's start time.
But I am not able to find a way to that with the whenever gem.Currently, I am just sending out all mailers at 9pm, and that works perfectly, but I that doesn't serve my use case, since different event organizers require it at different times
|
Whenever gem cronjob on a particular time based on model
|
stop the instancedetach the root volumeattach it to another instance, already running, in the same availability zonemount it at/mntfix the misconfiguration by editing the file, which you should find at/mnt/home/ubuntu/reboot.shunmountdetachreattach to the original instancestart the instance
|
I had created a script to reboot system after 90% Cpu utilisation. But for some testing purpose i changed the Vlaue of Cpu Utilisation to 0.7%.
And script is programmed to run system reboot.
Because of that Server never online it has got into some infinite reboot loop.My Script :#!/bin/bash
dstat| awk '{ if (int($1)>0.7) {
i=i+1; {
print i, $1
}
}
if (int($1)>0.7) {
j=j+1;
}
if (j>2) {
print "system reboot";
cmd="sudo reboot";
system(cmd)
}
}'N the script is programmed to run on reboot by using crontab :@reboot /bin/bash /ubuntu/home/reboot.shSo i am unable to login using SSH. Because the system is constant reboot.
My Server isaws ec2 insatnceI have tried passing user data through aws console.sudo apt-get purge dstat
cd /ubuntu/home && sudo rm reboot.sh
sudo /etc/init.d/cron stopBut it doesn't work.So, Any way to get my instance back would be highly Appreciated.
|
Stop Cron Job to close reboot infinite loop
|
I have fixed the issue. The problem was in the command. Firstly I had to put ~ at the start of the path to artisan file. Second I had to enter the absolute path to the php executable. So the final command that worked for me is:/usr/local/bin/php ~/public_html/fifa/artisan schedule:run >> /dev/null 2>&1
|
I am trying to setup a Cron job which will run after every minute and perform some task. I am using Laravel 5.5 and my site is hosted on Godaddy with shared hosting plan.
First I have implemented schedule method in app/Console/Kernel.php file like below:protected function schedule(Schedule $schedule)
{
$schedule->call(function () {
$video = new Video;
$video->title = 'sample title';
$video->save();
})->everyMinute();
}Then I have created a Cron Job in relevant section from Godaddy cPanel section. This section looks like below:I have also setup to send me email every time this tasks runs but nothing is happening. No email, no new entry in Videos table. Although other parts of application are configured correctly and working fine.
As far as my guess is, there seems to be something wrong with the path to artisan file that is given in php command. I have tried different combinations but no luck.
|
Cron Job not working in Laravel project on Godaddy on shared hosting
|
You need to add?in yourcronexpression by:Changing@Scheduled(cron = "0 26 8 * * *")into:@Scheduled(cron = "0 26 8 * * ?")
|
Spring Boot here. I have a scheduled background task that I kick off every hour on the hour:@Component
public class TokenReaper {
@Scheduled(cron = "0 0 * * * *")
public void fire() {
// Doesn't matter what it does...
}
}I actually need it to now runonlyat 8:26 AM every day, so only once a day at that time (strange, I know!), so I change the cron expression to:@Component
public class TokenReaper {
@Scheduled(cron = "0 26 8 * * *")
public void fire() {
// Doesn't matter what it does...
}
}After making this change, the task stops running at 8:26 AM, and because of the logs I can't tell when its actually running or if its actually running at all! Can anyone see if my new cron expression is somehow malformed ornotcorrectly set to run at 8:26 AM each and every morning?!
|
Sprng Boot @Scheduled task stopped working after cron change
|
Docker images do not save running processes. When your RUN command executes, it is only executed during the docker build phase and stops after the build completes.You need to specify the service cron start in your CMD (entry point).I would suggest creating a script to handle these tasks. As Containers were designed to only run a single process. But if you wrap your tasks in a single script and the script is the entry point you can get around this limitation.CMD /start.shWhere start.sh is a script that starts your cron service, and then runs your python script. You can also use supervisord but in my opinion for simple tasks like this, don't bother. In most cases don't bother with supervisord.Reference for above explanation:https://docs.docker.com/config/containers/multi-service_container/
|
I am trying to configure a docker container with a cron job and a flask app.It is just not working..I am aware that each container must have only 1 CMD command, but what aboutRUN service cron startCMD python hello.pyShouldn't it work?ps: I am avoiding creating a separate image for the cron job for other reasons...FROM python:3
RUN apt-get update && apt-get install -qq -y cron
COPY . .
# Add crontab file in the cron directory
ADD ./cron_job/crontab /etc/cron.d/cron_job
# Give execution rights on the cron job
RUN chmod 0644 /etc/cron.d/cron_job
RUN service cron start
# hello.py => flask app
CMD python hello.py
|
Docker container with cron and flask app
|
Try the below expression0 0-30 1 ? * MON *
|
I need to know cron expression to run every monday between 1 and 1:30 am.I have tried below expressions not worked.1 * 1-2 ? * MON *Can anyone help me to write cron expression?
|
How to schedule the CRON to be run 1 to 1:30?
|
Your schedule will only work if you call it at 10:00,add this cronjob* * * * * php /path-to-your-project/artisan schedule:run >> /dev/null 2>&1Laravel will call this function everyminute, and once it is 10:00 it will call the function accordingly.
Checkhttps://laravel.com/docs/5.5/scheduling#introduction, search for 'Starting The Scheduler'
|
I have deployed laravel 5.4 app in AWS Ubuntu 16.04 apache2, i have created task scheduler for sending emailsdailyAt('10:00').When i run the artisan commandphp artisan email:remindermanually every thing works fine.But when i runphp artisan schedule:runi am gettingNo scheduled commands are ready to run.I have also ran* * * * * php /var/www/html/app/artisan schedule:run >> /dev/null 2>&1referring to documentation.This isKernal.phpclass Kernel extends ConsoleKernel
{
protected $commands = [
\App\Console\Commands\EmailReminder::class,
];
protected function schedule(Schedule $schedule)
{
$schedule->command('email:reminder --force')->dailyAt('10:00');
}
protected function commands()
{
$this->load(__DIR__.'/Commands');
require base_path('routes/console.php');
}
}
|
Laravel CRON job not working in aws
|
This won't work as the (single) service version that will receive the targeted cron requests is not under the cron configuration control. From therow in theCron job definitions(emphasis mine):Thetargetstring is prepended to your app's hostname. It is
usually the name of a service.The cron job will be routed to the
version of the named service that is configured for traffic.Warning:Be careful if you run a cron job withtraffic splittingenabled. The request from the cron job is always sent
from the same IP address, so if you've specified IP address splitting,
the logic will route the request to the same version every time. If
you've specified cookie splitting, the request will not be split at
all, because there is no cookie accompanying the request.If the service name that is specified fortargetis not found, then the Cron request is routed to either thedefaultservice, or to
the version of your app that is configured to receive traffic. For
more information about routing, seeHow Requests are Routed.But since the cron service is nothing more thanGETrequests sent according to the schedule you could have a single generic cron config and, inside its handler, issue yourself more specific HTTP(S) requests to any URLs you desire.You could use theapps.services.versionsAPI in order to dynamically build the correct list of these per service-version pair URLs.
|
I want to have a cron job that calls my endpoint at a certain services and version (App Engine).I have created a cron job with the following config:<?xml version="1.0" encoding="UTF-8"?>
<cronentries>
<cron>
<url>/CleanupRealtimeDatabase</url>
<target>dev-dot-admin</target>
<description>Cleanup Realtime Database (Dev)</description>
<schedule>every 24 hours</schedule>
</cron>
</cronentries>This will make a call tohttp://dev-dot-admin.myapp.appspot.com/CleanupRealtimeDatabaseThis doesn't work, because it can not combine the -dot- and the .So the only solution is to use -dot- twice or use . twice. I can't control the second dot in the url (it's not part of the config). But when I change the dot to . in my config above I get the following error:Bad configuration: XML error validating
/CleanupRealtimeDatabase
dev.admin
Cleanup Realtime Database (Dev)
every 24 hours
against /Users/user/sdk/google-cloud-sdk/platform/google_appengine/google/appengine/tools/java/docs/cron.xsd
Caused by: cvc-pattern-valid: Value 'dev.admin' is not facet-valid
with respect to pattern '[a-z\d-]{1,100}' for type 'target-Type'.Not sure how to solve this? It feels like a bug in App Engine tooling.
|
How to make a cron job in App Engine that targets a service and a version?
|
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