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$UserID
The current user’s operating system user ID.
Syntax
$userid
Return Value
A number, or $Null. Can be reset by an application program.
Description
The current user’s operating system user ID; otherwise, $Null.
You can use the $UserID and $GroupID system variables to build levels of security into your applications.
During any Zim session, you can LOGIN under any defined UserName (in EntitySet Users). $ZUserID and $ZGroupID are then set to the UserID and GroupID associated with UserName; $UserID and $GroupID (containing values taken from the operating system) are still available for use.
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