How to use cron command in Linux/Unix?

List all the jobs in cron tab
crontab -l
List the cron job specific to the user
crontab -u user -l
Create a new cron job
Open the cron tab in edit mode by using crontab -e

Provide the cron expression at what interval process needs to be run followed by where the service is located in the machine 

EX: 30 5 * * *  /your/command 

Your command runs everyday at 5.30. To know more about cron visit below url 



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