75 lines
2.5 KiB
Plaintext
75 lines
2.5 KiB
Plaintext
# Copyright (c) 1991, 1993
|
|
# The Regents of the University of California. All rights reserved.
|
|
#
|
|
# This code is derived from software contributed to Berkeley by
|
|
# Kenneth Almquist.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# 3. All advertising materials mentioning features or use of this software
|
|
# must display the following acknowledgement:
|
|
# This product includes software developed by the University of
|
|
# California, Berkeley and its contributors.
|
|
# 4. Neither the name of the University nor the names of its contributors
|
|
# may be used to endorse or promote products derived from this software
|
|
# without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
# SUCH DAMAGE.
|
|
#
|
|
# @(#)popd 8.2 (Berkeley) 5/4/95
|
|
# $FreeBSD$
|
|
|
|
# pushd, popd, and dirs --- written by Chris Bertin
|
|
# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris
|
|
# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW
|
|
|
|
pushd () {
|
|
SAVE=`pwd`
|
|
if [ "$1" = "" ]
|
|
then if [ "$DSTACK" = "" ]
|
|
then echo "pushd: directory stack empty."
|
|
return 1
|
|
fi
|
|
set $DSTACK
|
|
cd $1 || return
|
|
shift 1
|
|
DSTACK="$*"
|
|
else cd $1 > /dev/null || return
|
|
fi
|
|
DSTACK="$SAVE $DSTACK"
|
|
dirs
|
|
}
|
|
|
|
popd () {
|
|
if [ "$DSTACK" = "" ]
|
|
then echo "popd: directory stack empty."
|
|
return 1
|
|
fi
|
|
set $DSTACK
|
|
cd $1
|
|
shift
|
|
DSTACK=$*
|
|
dirs
|
|
}
|
|
|
|
dirs () {
|
|
echo "`pwd` $DSTACK"
|
|
return 0
|
|
}
|