Cron jobs are an incredibly useful Linux tool aimed at saving you time by scheduling tasks within your server. A programmed cron task will execute commands within a script by the minute, day, week or month. They can be scheduled to do many tasks including backing up your server’s files nightly, updating inventory orders in a database or even compressing files for migrating. Repetitive tasks become a cinch when incorporating a cron job. While there are numerous ways to run a cron task, we will be using the crontab option that is inherent within Ubuntu to set up a nightly backup of our website.