Cron is a service for Linux servers that automatically executes scheduled commands. A cron job can be a series of shell commands, scripts, or other programs. Cron tasks or jobs can perform a variety of functions and once ran can send out an e-mail message to inform you of its completion or errors. If you receive an error, there are many ways to troubleshoot the cron task. Use this article for troubleshooting assistance or a tutorial on the basics of cron jobs. If you would like to learn more about creating a cron job check out our Knowledge Base tutorials on the subject.