linux - What facility does system crontab provide that user crontab for root cannot? -

linux - What facility does system crontab provide that user crontab for root cannot? -

i expand question here:

what need of scheme crontab when every user including root has own crontab? existence of scheme crontab seems duplicate functionality. scheme crontab more of artifact of history of cron system?

system crontab great way distro maintainers , app packagers include cron jobs don't pollute user crontab space.

the scheme crontab files can specify user run as, not in scheme crontab has run root.

non-login-users don't have crontabs, place set non-login-user tasks in scheme crontab.

generally, set local/custom stuff in root (or appropriate user) crontab, while prepackaged stuff don't straight maintain lives in scheme crontab.

really, it's matter of organization

linux cron