[johnchristopher]

My bash is set to use vim bindings (set -o vi) and I constantly loop through commands. I am guilty of doing this while sleepy and sometimes I think I have cd to another directory when in fact I have not. I rm-ed (too) many things that way.

[mtdewcmu]

I gave the vi mode a very short try, but it doesn't seem to make as much sense in a shell. If it has you accidentally deleting things, you might want to ask how much is it really worth. In vim you can undo.