http://www.reddit.com/r/ProgrammerHumor/comments/2u7efe/some_fun_with_bash/

fuck.sh

#/bin/usr/zsh

alias clearfucks="FUCKSGIVEN=0"
fucksgiven () {
    if [ $FUCKSGIVEN = ]; then
        export FUCKSGIVEN=0
    fi
    echo $FUCKSGIVEN fucks given
}

fuck () {
    export FUCKSGIVEN=$(($FUCKSGIVEN + 1))
    for arg in "$@"; do
        if [ $arg = "fuck" ]; then
            export FUCKSGIVEN=$(($FUCKSGIVEN + 1))
        fi
    done
}