How can I make my shell behave like vim? I've seen other developers do it but I never got it installed/set up on my machine.
Put this in your ~/.bashrc:
Then you can edit your command line using vi keys/commands instead of emacs keys/commands.
I didn't have to edit my .bashrc. I just set this on the command line.
For more info with examples and a downloadable cheat sheet please see http://www.catonmat.net/blog/bash-vi-editing-mode-cheat-sheet/