1: sh script to invoke the dungeon game on the pdp 2DLIB=/usr/games/lib/dunlib 3case $# in 4 0) $DLIB/listen| $DLIB/dungpdp| $DLIB/speak;; 5 1) $DLIB/listen dungeon.sav| $DLIB/dungpdp| $DLIB/speak;; 6 *) $DLIB/listen $2| $DLIB/dungpdp| $DLIB/speak;; 7esac 8