vimv

vimv is a terminal-based file rename utility that lets you easily mass-rename files using Vim.

Installing

curl https://raw.githubusercontent.com/thameera/vimv/master/vimv > ~/bin/vimv && chmod +755 ~/bin/vimv

Or simply copy the vimv file to a location in your $PATH and make it executable.

Go to a directory and enter vimv with optionally, a list of files to rename.
A Vim window will be opened with names of all files.
Use Vim's text editing features to edit the names of files. For example, search and replace a particular string, or use visual selection to delete a block.
Save and exit. Your files should be renamed now.

If you want to list only a group of files, you can pass them as an argument. eg: vimv *.mp4
If you have an $EDITOR environment variable set, vimv will use its value by default.
If you are inside a Git directory, vimv will use git mv (instead of mv) to rename the files.

Don't delete or swap the lines while in Vim or things will get ugly.