I was trying to add something to $PATH and it went totally wrong. I now can't run any commands such as
ls. I've looked at this answer (https://apple.stackexchange.com/questions/11745/reset-your-path-variable) and used the following lines:
These lines fix the problem temorarily; however, when I restart terminal it seems to forget these changes.
How do I permanently reset my $PATH?
I'm running the most recent version of Mountain Lion.