Cron Job is simply a utility for scheduling or maintaining a routine to execute a particular command or script during the set time intervals. Cron Jobs can perform various repetitive actions automatically by modifying the file/ database and also without modifying the files/database. For example, you can execute a command to delete particular file after every month, or can send email notifications automatically by setting cron job. There are number of tasks which can be accomplished by using this resourceful tool in your cPanel.  It is easy to create new cron jobs and delete or edit the previous ones at your convenience.