However, a value assigned to $ (must be a single number used to set the real gid.
The gid is the caller's effective group id. gids is a counted array of groups that contain the caller as a member.
If the gid specified does not refer to one within the winbind gid range then the operation will fail.
Remember that in /etc/passwd each user was given a default gid.
GID is typically diagnosed by a psychiatrist or psychologist, who conducts an interview with the patient and takes a detailed social history.