sudo make me a sandwich

make.sh

#!/bin/bash
# make-sandwich by Karim Vergnes <me@thesola.io>
# XKCD/149-compliant wrapper for Make
# License: WTFPL 1.0
# Requires make to work. To install, place in /usr/local/bin/

if ! which /usr/bin/make > /dev/null 2>&1
then
    echo "make is not installed. See your distribution's info to install it."
    exit 3
fi

if [[ "$1" == "sandwich" ]]
then
    [[ $UID == 0 ]] && { echo -e "Okay.\n(A sandwich appeared in /var/lib/sandwich)"; echo "From make with love :)" >> /var/lib/sandwich; exit 0; } \
                    || { echo "What? Make it yourself."; exit 1; }
else
    /usr/bin/make $@
fi