src/groups.sh

   1 #!/bin/sh
   2 # groups -- print the groups a user is in
   3 # Copyright (C) 1991, 1997, 2000 Free Software Foundation, Inc.
   4
   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)
   8 # any later version.
   9
  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.
  14
  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 # Written by David MacKenzie <djm@gnu.ai.mit.edu>.
  20
  21 # Make sure we get GNU id, if possible; also allow
  22 # it to be somewhere else in PATH if not installed yet.
  23 PATH=@bindir@:$PATH
  24
  25 usage="Usage: $0 [OPTION]... [USERNAME]...
  26
  27   --help      display this help and exit
  28   --version   output version information and exit
  29
  30 Same as id -Gn.  If no USERNAME, use current process.
  31
  32 Report bugs to <sh-utils-bugs@gnu.org>."
  33
  34 fail=0
  35 case $# in
  36   1 )
  37     case "z${1}" in
  38       z--help )
  39          echo "$usage" || fail=1; exit $fail;;
  40       z--version )
  41          echo "groups (@GNU_PACKAGE@) @VERSION@" || fail=1; exit $fail;;
  42       * ) ;;
  43     esac
  44     ;;
  45   * ) ;;
  46 esac
  47
  48 if [ $# -eq 0 ]; then
  49   id -Gn
  50   fail=$?
  51 else
  52   for name in "$@"; do
  53     groups=`id -Gn -- $name`
  54     status=$?
  55     if test $status = 0; then
  56       echo $name : $groups
  57     else
  58       fail=$status
  59     fi
  60   done
  61 fi
  62 exit $fail