printenv.sh

来自「android-w.song.android.widget」· Shell 代码 · 共 28 行

#! /bin/sh -

# Copyright (C) 1996-2002 Free Software Foundation, Inc.
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

if [ $# -eq 0 ]; then
	env
	exit
elif eval [ "\${$1-unset}" = "unset" ]; then
	exit 1
else
	eval echo \$$1
	exit 0
fi