Cron can be a daemon that operates on UNIX and Linux environments that perform scheduled orders also called cron jobs developed by the crontab command. For Example, a cron job might be designed within the early days to process records every day.

Cron is most suitable for scheduling repetitive tasks. Scheduling one-time tasks is often more easily accomplished using the associated at utility.

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Christopher Latham Sholes (February 14, 1819 – February 17, 1890) was an American inventor who invented the QWERTY keyboard and along with Frank Haven Hall, Samuel W. Soule, Carlos Gladden and John Pratt, has been contended as one of the …

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