2 # groups -- print the groups a user is in
3 # Copyright (C) 1991, 1997, 2000, 2002, 2004-2007 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2, or (at your option)
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software Foundation,
17 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 # Written by David MacKenzie <djm@gnu.ai.mit.edu>.
21 # Make sure we get GNU id, if possible; also allow
22 # it to be somewhere else in PATH if not installed yet.
25 usage="Usage: $0 [OPTION]... [USERNAME]...
27 --help display this help and exit
28 --version output version information and exit
30 Same as id -Gn. If no USERNAME, use current process.
32 Report bugs to <@PACKAGE_BUGREPORT@>."
34 version='groups (@GNU_PACKAGE@) @VERSION@
35 Copyright (C) @RELEASE_YEAR@ Free Software Foundation, Inc.
36 This is free software. You may redistribute copies of it under the terms of
37 the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
38 There is NO WARRANTY, to the extent permitted by law.
40 Written by David MacKenzie.'
46 --help | --hel | --he | --h)
48 --version | --versio | --versi | --vers | --ver | --ve | --v)
49 exec echo "$version" ;;
54 echo "$0: invalid option: $arg" >&2
59 # With fewer than two arguments, simply exec "id".
61 0|1) exec id -Gn -- "$@" ;;
64 # With more, we need a loop, and be sure to exit nonzero upon failure.
70 if groups=`id -Gn -- "$name"`; then
71 echo "$name : $groups" || {
73 if test $write_error = 0; then
74 echo "$0: write error" >&2