S.no CRON ANACRON
1. It is a daemon that runs scheduled tasks It runs commands periodically, the frequency being defined in several days.
2. Example – updates, system backups Example – a backup script that is scheduled to run weekly or monthly.
3. Suitable for machines that are on 24x7 like servers Suitable for machines like laptops and desktops that are NOT on 24x7.
4. Runs as per defined schedules. Checks if any job has to be executed when the user turns on the power.
5. Default system crontab file is /etc/crontab Listed in /etc/anacrontab

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