The following example shows how to use crontab -r to remove the default user's crontab file, as well as crontab files belonging to root and another user. ls verifies that the correct crontab files have been removed.
$ ls /usr/spool/cron/crontabs adm jones lp root smith sys $ crontab -r $ ls /usr/spool/cron/crontabs adm jones lp root sys $ su Password: # crontab -r # ls /usr/spool/cron/crontabs adm jones lp sys # crontab -r jones # ls /usr/spool/cron/crontabs adm lp sys |