execute Permissions on a Directory

           0100    For files, allow execution by owner.
                   For directories, allow the owner to search in the directory.
           0010    For files, allow execution by group members.
                   For directories, allow group members to search in the directory.
           0001    For files, allow execution by others.
                   For directories allow others to search in the directory.

• Think: "search" or "traverse"