src/groups.sh

   1 #!/bin/sh
   2 # groups -- print the groups a user is in
   3 # Copyright (C) 1991 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
  17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 case $# in
  33   1 )
  34     case "z${1}" in
  35       z--help )
  36          echo "$usage"; exit 0 ;;
  37       z--version )
  38          echo "groups - @VERSION@"; exit 0 ;;
  39       * ) ;;
  40     esac
  41     ;;
  42   * ) ;;
  43 esac
  44
  45 if [ $# -eq 0 ]; then
  46   id -Gn
  47 else
  48   for name in "$@"; do
  49     echo $name : `id -Gn -- $name`
  50   done
  51 fi