Provided by: coreutils_8.21-1ubuntu5.4_amd64 

NAME
groups - print the groups a user is in
SYNOPSIS
groups [OPTION]... [USERNAME]...
DESCRIPTION
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
--version
output version information and exit
AUTHOR
Written by David MacKenzie and James Youngman.
REPORTING BUGS
Report groups bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report groups translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent
permitted by law.
SEE ALSO
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
info coreutils 'groups invocation'
should give you access to the complete manual.
GNU coreutils 8.21 March 2016 GROUPS(1)