Found this in Libera/#linux. The tool suggested there was vidir which allows you to edit directories in Vi which blows my mind if I think about it for too long. :D

This blog post documents my understanding of how the conventions for Unix command line syntax have evolved over time. It’s not properly sourced, and may well be quite wrong. I’ve not been using Unix until 1989, so I wasn’t there for the early years.

Process substitution is a great little feature and it feels very Unixy, but it took a surprisingly long time to appear in Unix and in shells. This is because it needed a crucial innovation, namely names in the filesystem for file descriptors, names that you can open() to be connected to the file descriptor.