1 ;# pwd.pl - keeps track of current working directory in PWD environment var
3 ;# $RCSfile: pwd.pl,v $$Revision: 4.0.1.1 $$Date: 92/06/08 13:45:22 $
6 ;# Revision 4.0.1.1 92/06/08 13:45:22 lwall
7 ;# patch20: support added to pwd.pl to strip automounter crud
9 ;# Revision 4.0 91/03/20 01:26:03 lwall
12 ;# Revision 3.0.1.2 91/01/11 18:09:24 lwall
13 ;# patch42: some .pl files were missing their trailing 1;
15 ;# Revision 3.0.1.1 90/08/09 04:01:24 lwall
16 ;# patch19: Initial revision
29 local($dd,$di) = stat('.');
30 local($pd,$pi) = stat($ENV{'PWD'});
31 if ($di != $pi || $dd != $pd) {
32 chop($ENV{'PWD'} = `pwd`);
36 chop($ENV{'PWD'} = `pwd`);
38 if ($ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|) {
39 local($pd,$pi) = stat($2);
40 local($dd,$di) = stat($1);
41 if ($di == $pi && $dd == $pd) {
48 local($newdir) = shift;
50 if ($newdir =~ m#^/#) {
51 $ENV{'PWD'} = $newdir;
54 local(@curdir) = split(m#/#,$ENV{'PWD'});
55 @curdir = '' unless @curdir;
56 foreach $component (split(m#/#, $newdir)) {
57 next if $component eq '.';
58 pop(@curdir),next if $component eq '..';
59 push(@curdir,$component);
61 $ENV{'PWD'} = join('/',@curdir) || '/';