You can use vi mode editing in any program that uses readline 11 years ago
As a vim user for everything, I once tried to use the vi mode in bash and zsh, but quickly got back to emacs style cause I couldn't do what I was used to (mostly Ctrl+P/N,A/E,R,W/U). Is there someone here who would tell me how he uses the vi mode in a shell/readline program so I could try again?