In both snippets, right before opendir, print $path. You'll notice they're different. 

"c:/documents\ and\ settings/username/desktop/perf_analyzer"

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is the same thing as 
"c:/documents and settings/username/desktop/perf_analyzer"

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Both of the above produce the string 
c:/documents and settings/username/desktop/perf_analyzer

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Expressions that produce the string 

c:\documents and settings\username\desktop\perf_analyzer

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would also be fine. Your bug is 
$path=~s/\s{1}/\\ /g;

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You are causing the string to become 
c:/documents\ and\ settings/username/desktop/perf_analyzer

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That's bad, because there's no directory c:\documents

Fixed code: 

chomp( my $path = `cd` );
opendir MYDIR, $path
   or die("Can't open dir $path: $!\n");

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Even better: 

opendir MYDIR, '.'
   or die("Can't open current dir: $!\n");

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In reply to Re: I go crazy with windows filenames with spaces! by ikegami
in thread I go crazy with windows filenames with spaces! by Anonymous Monk

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