File Info, under Sharing & Permissions, says "You have custom access" and lists:
Name Privilege joe (user) Read & Write staff (group) Read & Write everyone Read only
ls -le says:
-rwxrwxr-x 1 egbert staff 22806528 Jun 4 08:57 somefile.ext
This agrees with output from
stat -x somefile.ext
Mode: (0775/-rwxrwxr-x) Uid: ( 501/ egbert) Gid: ( 20/ staff)
joe is not a known user on this system (check with
dscl . -list /Users UniqueID and "joe" is not in the list)
Finder won't let me "Choose new owner...". It says "The operation can't be completed because you don’t have the necessary permission." Yet I am egbert (see above) and I am owner and I have write privileges.
There does not appear to be any ACL on the file or any extended attributes (@ or +).
sudo chmod -N somefile.ext fails with
chmod: Failed to clear ACL on file somefile.ext: Operation not supported.
So who is joe if he's not known or listed among users? And how do I remove this user's access and restore privileges to me (egbert)? And why is there a disagreement between the Finder and what is reported by