As I mention in a sibling comment, I made an updated version that works on a modern Linux system (https://github.com/jabl/fsv https://github.com/jabl/fsv ), but

As I mention in a sibling comment, I made an updated version that works on a modern Linux system (https://github.com/jabl/fsv https://github.com/jabl/fsv ), but, uh, useful? Nope, it's a gimmick or a toy, not something you'd actually use to increase your productivity.