GROUPS(1) User Commands GROUPS(1) 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 GNU coreutils online help: Report any translation bugs to COPYRIGHT Copyright (C) 2025 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO getent(1) Full documentation or available locally via: info '(coreutils) groups invocation' GNU coreutils 9.6 March 2025 GROUPS(1)