Print group memberships for each USERNAME or, if no USERNAME is specified, for the current process (which may differ if the groups
database has changed).
--help display this help and exit
output version information and exit
The full documentation for groups is maintained as a Texinfo manual. If the info and groups programs are properly installed at your
site, the command
should give you access to the complete manual.
This is a manual page collection for Linux and Unix-like operating system.
Works with all browsers and mobile phones.
The HTML in this layout validates as XHTML 1.0 strict.