Unable to start mysql I am using Oracle LINUX5. I installed MySQL 5.1.73 community edition through RPM command and it was working. Now, I stop mysql by running below command:

$ mysqladmin -u root -ptmpassword shutdown


I did not get any message after executing the above command. When I run below command to start the service:

$ /etc/rc.d/init.d/mysql start


I got below message:
Starting MySQL.Manager of pid-file quit without updating fi[FAILED]

Now, I am unable to connect MySQL database. 


How can I start MySQL again?  
What is the reason behind not starting the service?
I found my answer and I want to laugh on myself... What a silly mistake I did!
Sharing this solution so that others can save their time.
I just prefix sudo command in the below statement and mysql started.

$ sudo /etc/rc.d/init.d/mysql start


Input password:
Starting MySQL.
I checked and found that MySQL is running by issuing below command:

$ mysqladmin -u root -pjoomla1 ping


mysqld is alive