How can I reset $PATH to its default value?

view full story

http://askubuntu.com – I accidentally unset all the directories of $PATH while trying to add a new one in ~/.bashrc. I opened a new terminal window as I was editing and now $PATH is empty. I'm worried if I boot from another drive to find the $PATH I won't be able to boot into this drive again. Basically, what is the default result of echo $PATH? (HowTos)