Hi people,

I've encounted a weird problem.Basically, I wanna read entries in a directory and opendir works. However, the readdir just return null strings instead of file names, I'm so confused.

If there are 5 files in $directory, what I got is 7 ''.

Code: 

opendir( DIR, $directory ) or die "open dir error";

    my $number = 0;
    while(defined($name = readdir (DIR))) {
            $number++;
            if($name eq "") {
                    print "Value -$name* is null string."
            }
            print "Loop $number-->$name**\n";
            next if $name eq "." || $name eq "..";
            next unless $name =~ /(.*)\.lip$/;        
            
            push @names, $name;
    }

[download]

In reply to readdir return nul string by marscld

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.