After a sporadic pointer bug, I've finally come up with a
stable version of a duplicate file finder. It uses standard
shell tools so I'm proud of that. It also takes 50-66% of
the time a similar tool (fdupes) needs to do the job.
Next project: xjig - understand and update. I believe this game is very underrated and neglected. It should be as ubiquitous as klondike or tapei.