老地方冰果室交流區

better !pout !cry
better watchout
lpr why
santa claus town

cat /etc/passwd >list
ncheck list
ncheck list
cat list | grep naughty >nogiftlist
cat list | grep nice >giftlist
santa claus town

who | grep sleeping
who | grep awake
who | grep bad || good
for (goodness sake) {
be good }