Schedule tasks with cron

Run a script at a fixed time, with no interface.

1. Edit your cron table:

   crontab -e

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2. Each line follows the format: minute, hour, day of month, month, day of week, command.
3. Examples: every 15 minutes, and every day at 3:30 am:

   */15 * * * * /home/moi/scripts/sync.sh
   30 3 * * * /home/moi/scripts/sauvegarde.sh

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4. List your tasks:

   crontab -l

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5. Always use absolute paths and redirect output to a file to debug.
6. Modern alternative: systemd timers, more flexible for services.