Shells

What shell does /prog/ use?
I've only used bash, but I want to explore my options. So, which shell do you use, and, if you feel so inclined, why?

>>53
Plan 9's terminal does away with the bullshit pseudographics that *nix is infested with (e.g. any curses app ever, Emacs, vi, text art progress bars), making the whole experience cleaner. Since it doesn't have to worry about strange modes of operation, it is free to buffer input, allowing arbitrary editing of your input with both the keyboard and the mouse. Since programs can't dick with previous output, you're free to edit it as well. So if perhaps I "ls" and want to delete a file, I can just type "rm" before its name then execute that text.
Did you mean: M-x shell