I invented a couple of utilities at work today. They’re really useful little go programs. So useful, in fact,
that they have already existed for many years. I haven’t written in a while so I figured I’d post them here as a little
guessing game. See if you can figure out what they are from the code, just note that they are not faithful
reimplementations, as I didn’t originally set out to reimplement anything. Expand the description for a hint.
If you like this kind of thing, many other utilities can be found in go-coreutils.