I have a list of URL and I'm trying construct a firewall log with that list.
Example: 

```
$ cat urls.csv 

a.com

```

I know how to construct the log with IP directly mentioned as variable. 

```
$ cat processor.sh 

#!/bin/bash
filename="$1"
while read -r line
do
   URLS="$line"
   IP='10.109.1.1'
   today_date=`date +%d/%b/%Y`
   conact_1=" - - ["
   concat_2=":00:00:00 +0000] "
   date_concat=$conact_1$today_date$concat_2
   GET='"GET '
   protocol=' HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0'
   final_url=$IP$conact_1$today_date$concat_2$GET$URLS$protocol
   echo $final_url
done < "$filename"

```

Result: 

```
$ bash processor.sh urls.csv

10.109.1.1 - - [22/Jul/2018:00:00:00 +0000] "GET a.com HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0 

```

Now If i have a log line of `50 or 100` or even more , How can I generate random IP for the total number of URLs and generate a log line ? 

```
$cat urls.csv

a.com
b.com
c.com
d.com
....

```

Any suggestions on how to generate random IPs in bash? 

Expected Result: 

```
$ bash processor.sh urls.csv

1.1.1.1 - - [22/Jul/2018:00:00:00 +0000] "GET a.com HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0
1.1.1.2 - - [22/Jul/2018:00:00:00 +0000] "GET b.com HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0
1.1.1.3 - - [22/Jul/2018:00:00:00 +0000] "GET c.com HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0
1.1.1.4 - - [22/Jul/2018:00:00:00 +0000] "GET d.com HTTP/1.1" 304 0 304 0 0 0 655 456 645 368 0
............

```