A Unix command for scheduling jobs to be executed sometime in the future. A cron is normally used to schedule a job that is executed periodically - for example, to send out a notice every morning. It is also a daemon process, meaning that it runs continuously, waiting for specific events to occur.
Automation and cron Describes what the crond system daemon does and what the components of the cron system are. Also contains sections on crontab fields and formats,
