Good call, this definitely doesn't work the way the author intended. I wondered the same thing initially and tried something eerily similar to your code, but it seemed to warn me on both print statements. When I read your post I was definitely surprised for a few seconds, until I looked at the top of my script and found this: 
#!/usr/bin/perl -w

[download]
So, removing the -w gave me the output you describe.

I use perl -w in most of my scripts, so it's in my VIM template for Perl scripts. Further proof that it's important to remember your coding habits, lest they sneak up on you when you least expect it. :)

In reply to Re^2: $^W or require warnings and import warnings; by biosysadmin
in thread $^W or require warnings and import warnings; by szabgab

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.