Many people find themselves in nano for a quick change. They aren't interested in learning keybindings for an editor, especially (in the case of vi/vim) when t

Many people find themselves in nano for a quick change. They aren't interested in learning keybindings for an editor, especially (in the case of vi/vim) when those keybindings can accidentally clobber a chunk of your configuration file, sometimes without the user noticing. Nano, as other comments have stated, shows the essential keybindings at the bottom of the screen, always. (I've been using vim for over a decade.)