Related to this, is the advice I give everyone for editing the sudoers file:
First, open two superuser terminals. The second one is so if you fuck up the sudoers format so it doesn't parse and you accidentally 'exit' one too many times in the first terminal.
First, open two superuser terminals. The second one is so if you fuck up the sudoers format so it doesn't parse and you accidentally 'exit' one too many times in the first terminal.