better !pout !cry
better watchout
lpr why
santa claus < north pole >town
cat /etc/passwd >list
check list
check list
cat list | grep naughty >nogiftlist
cat list | grep nice >giftlist
santa claus < north pole >town
who | grep sleeping
who | grep awake
who | egrep 'bad|good'
for (goodness sake) {
be good
}
(by Frank Carey, AT&T Bell Laboratories, 1985)