athame - Full vim for your shell (bash, zsh, gdb, python, etc)
Athame patches your shell to add full Vim support by routing your keystrokes through an actual Vim process. Athame can currently be used to patch readline (used by bash, gdb, python, etc) and/or zsh (which doesn't use readline). Yes, and if you're fine with basic vi imitations designed by a bunch of Emacs users, feel free to use them. ...but for the true Vim fanatics who sacrifice goats to the modal gods, Athame gives you the full power of Vim.