I don't always need this, but at times, it is quite useful - view files in zip.

One command I was unaware of and one I had forgotten: zipinfo Archive.zip and unzip -l Archive.zip. Both should do the trick.

An interesting way to look at and fix a problem. Bash - when did I run that command?

I might try to use something like that for a different problem, but the solution might be just as valid.