#/bin/sh better [ !pout -a !cry ] better [ !shout ] cat /etc/why santa_claus < north_pole > town cat /etc/passwd | awk 'BEGIN {FS=":"} {print $1}' > list /usr/bin/check list /usr/bin/check list cat list | grep naughty > /dev/coal cat list | grep nice > /dev/presents santa_claus < north_pole > town who | grep sleeping who | grep awake who | grep bad who | grep good for goodness sake;do be good done better [ !pout -a !cry ] better [ !shout ] cat /etc/why santa_claus < north_pole > town