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Tux Machines (TM)-specific
You can schedule a command or a script using two tools
crontab : Schedules tasks once or repeatedly.
You can use the crontab command to run commands at regular times. For example, you could schedule a backup of your files every Friday. Commands can be scheduled to the minute.
at : Schedules tasks once.
You can use the at command to schedule a command or script to run a single time. The command includes several utilities