1 ;# pwd.pl - keeps track of current working directory in PWD environment var
3 ;# $RCSfile: pwd.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:11 $
6 ;# Revision 4.1 92/08/07 18:24:11 lwall
8 ;# Revision 4.0.1.1 92/06/08 13:45:22 lwall
9 ;# patch20: support added to pwd.pl to strip automounter crud
11 ;# Revision 4.0 91/03/20 01:26:03 lwall
14 ;# Revision 3.0.1.2 91/01/11 18:09:24 lwall
15 ;# patch42: some .pl files were missing their trailing 1;
17 ;# Revision 3.0.1.1 90/08/09 04:01:24 lwall
18 ;# patch19: Initial revision
31 local($dd,$di) = stat('.');
32 local($pd,$pi) = stat($ENV{'PWD'});
33 if ($di != $pi || $dd != $pd) {
34 chop($ENV{'PWD'} = `pwd`);
38 chop($ENV{'PWD'} = `pwd`);
40 if ($ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|) {
41 local($pd,$pi) = stat($2);
42 local($dd,$di) = stat($1);
43 if ($di == $pi && $dd == $pd) {
50 local($newdir) = shift;
52 if ($newdir =~ m#^/#) {
53 $ENV{'PWD'} = $newdir;
56 local(@curdir) = split(m#/#,$ENV{'PWD'});
57 @curdir = '' unless @curdir;
58 foreach $component (split(m#/#, $newdir)) {
59 next if $component eq '.';
60 pop(@curdir),next if $component eq '..';
61 push(@curdir,$component);
63 $ENV{'PWD'} = join('/',@curdir) || '/';