Instead of hacking cron, how about 5,20,35,50 * * * * ( echo /usr/lib/uucp/lblpoll | su uucpd ) or 0 0,4,8,12,16,20 * * * ( su uucpd < /usr/lib/uucp/cleanup) This is from a production crontab, and you don't even need to fire up the C compiler. -Mike