1#! /bin/sh - 2 3# Copyright (C) 1996-2002 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 3 of the License, or 8# (at your option) 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, see <http://www.gnu.org/licenses/>. 17# 18 19if [ $# -eq 0 ]; then 20 env 21 exit 22elif eval [ "\${$1-unset}" = "unset" ]; then 23 exit 1 24else 25 eval echo \$$1 26 exit 0 27fi 28