# Write steps to execute a script as soon as system starts.

Follow these steps.

1. Go to /etc/init.d
2. Add a file( say example ) and place the script you want to execute in that.
3. chmod +x /etc/init.d/example. (permissions)
4. Add # chkconfig: 345 99 10 inside your script
5. Save it  
6. Start the service with — service example start.

This should work as system service/ startup service