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Just now I screwed up and hosed the file
/etc/sudoers
And that's a problem - this file maintains some of the rules which users are the sudo users, and after damaging the file one can no longer edit the file with:
sudo nano /etc/sudoers
And that sucks ... because now we cannot fix the file ...
I did find a surprising simple solution though.
Go to "/etc" with the Finder, and look at the file information ( command ⌘ + i ) of the file "sudoers". Set the access rights to "read" end "write" for all users, so "owner", "group" and "everyone". Your Mac will ask for your password a few times.
After that you can simply edit the file with:
nano /etc/sudoers
and correct the mistake you made (or revert back to it's original).
Do not forget to set the proper rights again when done, so only "owner" can "read" and "write".
