cd alternatives always give me PTSD from one of my earliest computer memories, aged 13 or so. That was on DOS 3.3 on my parents 286, and I had recently installed some Norton utilities, among them ncd (Norton Change Directory), which kept its own database of directories and allowed for fuzzy cd with regex.

It was quite cool to see the power of such a tool, until the day I wanted to ncd into a directory with some code experiments I had built and just delete them all. Unfortunately the completion sent me into another directory, which I noticed after deleting all my parents tax documents.

DOS 3.3 didn't have an undelete command like later versions of DOS, so a colleague of my dad had to spend an evening trying to restore some of that data with some external tools. On the positive side, he also installed DOS 6.22 (we were really behind).

I guess you learned what a FAT was that evening.