projects / unix-history / blame
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|---|---|---|
| 11d9372d KB |
1 | # Copyright (c) 1991 The Regents of the University of California. |
| 2 | # All rights reserved. | |
| 3 | # | |
| 4 | # This code is derived from software contributed to Berkeley by | |
| 5 | # Kenneth Almquist. | |
| 6 | # | |
| 7 | # %sccs.include.redist.sh% | |
| 8 | # | |
| 9 | # @(#)dirs 5.1 (Berkeley) %G% | |
| 10 | ||
| 11 | # pushd, popd, and dirs --- written by Chris Bertin | |
| 12 | # Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris | |
| 13 | # as modified by Patrick Elam of GTRI and Kenneth Almquist at UW | |
| 14 | ||
| 15 | pushd () { | |
| 16 | SAVE=`pwd` | |
| 17 | if [ "$1" = "" ] | |
| 18 | then if [ "$DSTACK" = "" ] | |
| 19 | then echo "pushd: directory stack empty." | |
| 20 | return 1 | |
| 21 | fi | |
| 22 | set $DSTACK | |
| 23 | cd $1 || return | |
| 24 | shift 1 | |
| 25 | DSTACK="$*" | |
| 26 | else cd $1 > /dev/null || return | |
| 27 | fi | |
| 28 | DSTACK="$SAVE $DSTACK" | |
| 29 | dirs | |
| 30 | } | |
| 31 | ||
| 32 | popd () { | |
| 33 | if [ "$DSTACK" = "" ] | |
| 34 | then echo "popd: directory stack empty." | |
| 35 | return 1 | |
| 36 | fi | |
| 37 | set $DSTACK | |
| 38 | cd $1 | |
| 39 | shift | |
| 40 | DSTACK=$* | |
| 41 | dirs | |
| 42 | } | |
| 43 | ||
| 44 | dirs () { | |
| 45 | echo "`pwd` $DSTACK" | |
| 46 | return 0 | |
| 47 | } |