1 – Login to your cPanel and in Advanced section choose Cron Jobs
2 – Cron Email enter your email if you want to receive email notification when cron job runs it depends on your cron settings.
3 – Setting Add New Cron Job according to your own and in Command field put the URL or command you want to execute every time cron runs.
4 – Its just example showing that cron job will execute the command every minute and you will get instant email which you updated in step 2
It looks like this after you successfully add new cron job.