Most recently I accidentally executed a
 chown -hR root:oohyeah /
which ran for a few seconds before I noticed and stopped it. It chown'd /usr/bin/sudo, which locked me out of sudo , but I fixed that. Next up is the gui, which doesn't appear to be able to perform sudo actions, such as shutting down. I can
 sudo shutdown 0
just fine, of course. Where is the gui folder so I can chown it back?

Also, anything come to mind that might also be broken due to the de-elevated ownership from root to my local account? The erroneous chown command didn't finish recursing to every directory in /, but it did run for a few solid seconds.