B::Deparse would've answered your question. This is how perl sees your program: 
BEGIN { $^W = 1; }
use CGI;
use CGI::Pretty;
use File::Basename;
use DirHandle;
use strict 'refs';
my $path = dirname('c:/pictemp/start.gif');
my @files;
opendir DIR, $path;
@files = readdir DIR;
my $junk;
if ($files[0] eq '.') {
    $junk = shift @files;
}
if ($files[0] eq '..') {
    $junk = shift @files;
}
my $query = 'CGI'->new;
print $query->header('text/html'), $query->start_html(-'title', 'Renam
+ing Digital Photos', -'bgcolor', '#ffffcc');
print "<form name=newNameForm method=post action=rename.cgi>\n";
print $query->input({-'name', 'baseDir', -'type', 'hidden', -'value', 
+"$path"});
print "\n<table border=1><tr valign=top>\n";
my $file;
my $counter = 0;
my $tempFile;
foreach $file (@files) {
    $tempFile = $path . '/' . $file;
    print "<td>\n\t" . $file . "<br>\n\t";
    print $query->input({-'type', 'hidden', -'name', "'hidden'.$counte
+r", -'value', "$file"});
    print "\n\t";
    print $query->input({-'type', 'text', -'name', "'newName'.$counter
+", -'size', '30', -'value', $file});
    print "\n\t<img width=200 src=" . $tempFile . ">\n\t</td>\n";
    if (++$counter % 3 == 0) {
        print "</tr><tr valign=top>\n";
    }
}
print '</tr></table>';
print closedir DIR;

[download]
print closedir DIR; will print 1 if closedir returns true.

In reply to Re: CGI throws in an extra character. Why? by Anonymous Monk
in thread CGI throws in an extra character. Why? by Petras

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.