I was working in /bin on my Ubuntu system and ended up deleting su via a typing error while trying to do other editing. So now I have no way of swapping back and forth between users and root. I have tried grabbing a su file off my other computer and putting it in /bin in order to get a temp work around, but it still says permission denied, but since I'm logged in as root I tried to chown it to root (successfully), but I'm still not able to swap users and am getting the Permission Denied failure. Is there any quick way of recovery, or am I going to have to do a recovery of some sort?
Accidentally deleted /bin/su
ubuntu;software installation;su