For files in /tmp directory, linux has cron at /etc/cron.daily to deal with:[2hei.net cron.daily]$ cat tmpwatch flags=-umc/usr/sbin/tmpwatch “$flags” -x /tmp/.X11-unix -x /tmp/.XIM-unix \    -x /tmp/.font-unix -x /tmp/.ICE-unix -x /tmp/.Test-unix 240 /tmp/usr/sbin/tmpw ...