groups

Print the names of the groups a specific user is in.

Synopsis

groups [OPTION]... [username]...

Description

• Prints the names of the groups that the specified user belongs to.

Options

--help       # Display help information and exit.
--version    # Display version information and exit.

Parameters

username (optional): One or more usernames. If not provided, the command defaults to the current user.

Return Value

Returns 0 on success and a non-zero value on failure.

Examples

Display the groups for the user linux:

[root@localhost ~]# groups linux
linux : linux adm dialout cdrom plugdev lpadmin admin sambashare

Note

1. This command is equivalent to id -Gn.
2. Each user belongs to one group specified in /etc/passwd and potentially other groups specified in /etc/group.
3. This command is part of the GNU coreutils package. For more information, see man -s 1 groups or info coreutils 'groups invocation'.