mmv, a tool for batch renaming files

A couple of months a go, I wrote a command-line tool called mmv, which lets you batch rename files. You can find its source code on GitHub.

mmv takes a single argument, a path to a directory. It opens a list of the files in that directory in the text editor of your choice. You can edit the file names and when you save and exit your editor, it'll rename the files.

I think this is a neat solution to an occasional problem. Changing lots of file names is basically a text editing problem, and most people have a text editor they're already proficient with.