groupmems(8) on Linux
The text 6c4360fb4938, as Debian 12 (Bookworm) shipped it. The page shows this text now.
administer members of a user's primary group
Flags it lists
-
--add -
--delete -
--group -
--help -
--list -
--purge -
--root -
-R -
-a -
-d -
-g -
-h -
-l -
-p