The application user’s Zim group identifier.
The group identifier of the user specified in the last successfully executed LOGIN command. Cannot be reset by an application program.
Upon successful execution of a LOGIN command, $ZGroupID is set to the specified user’s group identifier.
Although you can change the value of this variable, you cannot change the effect of the LOGIN command. The current user continues to be treated according to the GroupID and UserID associated with the UserName given in the last LOGIN command.
When you call up any Zim system (full, Runtime, etc.), the software automatically attempts to log you in as a user called ZIM.