That makes the original poster's situation all the more baffling. Something must have been done that shouldn't have been under sudo - maybe the Xcode installer script got confused????tomf87 said:No user is in the admin unix group by default, so you'd have to edit the /etc/group file manually. I'm not referring to Admin users specified in NetInfo. My user is in the admin group in NetInfo, and I cannot 'chmod 777 /Applications'. I think chmod uses /etc/group instead.
Of course, using sudo removes those barriers, which is what I was saying in my previous post. So a normal user cannot chmod the default apps or the /Applications folder without using sudo.