"There is only one Unix command you will ever need to remember, and only 2 flags for that command" (It's amazing what man -k and man -f can do for your Unix skills).
(From a message in linux.redhat.misc newsgroup)
Linux: gawk, date, finger, wait, unzip, touch, nice, suck, strip, mount, fsck, umount, make clean, sleep. (Who needs porn when you have /usr/bin?)
(From a message in linux.redhat.misc newsgroup)