title: Environment variables in perl
body: <p>I seem to be able to access environment variables in perl just by doing:</p>
  
  <pre><code>use Env;
  print ${PATH};
  </code></pre>
  
  <p>Is this expected behaviour?</p>
  
  <p>The <a href="http://perldoc.perl.org/Env.html" rel="noreferrer">Env docs</a> say you need to do <code>$ENV{PATH}</code>.</p>