That's right, kids, when you're writing Perl, remember to restrict yourselves to the subset of the language that looks sort of like C, otherwise people might not understand! The statement unlink $file if /.BGV/; should obviously have been written this way: 
my @str = split //;
for (my $i = 1; $i < scalar(@str) - 2; $i++) {
   if ($str[$i] eq 'B' && $str[$i+1] eq 'G' && $str[$i+2] eq 'V') {
      unlink $file;
      $i = scalar(@str) - 2;
   }
}

[download]
See how much more readable that is?

In reply to Re^2: Do not understand code by Anonymous Monk
in thread Do not understand code by BlackKnait

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.