Let's say, just for the sake of discussion, that you have an Xbox and you want to zip up all the roms in their own little zip files so that they take up less space, since nearly all the emulators will load roms from zip file, and perhaps because emulauncher currently demands that all extensions for a specific type of game be the same. Here's how you would do something like this in a bourne-compatible shell (like bash, ksh, ash, etc:)