<fizzie> ` for w in benvenuto bienvenido bienvenue bonvenon tervetuloa v\xc3\xa4lkommen velkomin velkommen welcome welkom wercome willkommen \xd0\xb4\xd0\xbe\xd0\xb1\xd1\x80\xd0\xbe-\xd0\xbf\xd0\xbe\xd0\xb6\xd0\xb0\xd0\xbb\xd0\xbe\xd0\xb2\xd0\xb0\xd1\x82\xd1\x8c; do sed -i -e \'s|bin/[@?]|$HACKENV/&|g\' /hackenv/bin/$w; done

brainfuck is an esoteric programming language created to make the smallest possible compiler for a Turing-complete language. It is what introduces many people to esolangs, spawning a vast number of derivatives that we pretty much all despise. http://esolangs.org/wiki/Brainfuck