<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

A greater than sign instructs the shell to send the output of the command to a file.  Not very mnemonic, but a grater is the closest thing to a file that ASCII has.