Re: read directory

[choroba]

This has been asked many times. Even the documentation of readdir itself mentions the problem:

If you're planning to filetest the return values out of a readdir, you'd better prepend the directory in question.

Also, you should always check the return value of opendir. Moreover, use strict and warnings, they should tell you that $fh and $dh are different variables.

So, all of that together:

#!/usr/bin/perl
use warnings;
use strict;

my $dir = 'C:/';
opendir my $dh, $dir or die $!;
while (my $file = readdir $dh) {
    print "$file\n" if -d "$dir/$file";
}
close $dh;

[Anonymous Monk]

Why doesn't my if-statement work?

[choroba]

OK, let's assume you start in "D:\Program Files" and run the script. It reads a filename from C:\, let's say temp. Your if tries to verify that the directory temp exists in the current directory, i.e. "D:\Program Files\temp" is a directory, which is false. My if, on the other hand, tries to verify that "C:\temp" is a directory, which is true.

[Anonymous Monk]

Thanks for responding