title: What should I use for a Perl script's shebang line?
body: <p>Which of these is better or faster to use as the shebang line for a Perl script?</p>
  
  <pre><code>#! perl
  
  #! perl.exe
  
  #! fullpath/perl(/perl.exe)
  
  #! partialpath/perl(/perl.exe)
  </code></pre>
  
  <p>And, when using <code>#!perl</code>, when it works on a particular system, how do I find out in the script which perl interpreter I'm using so I can put that one into the shebang line?</p>
  
  <hr>
  
  <p>And, if using a <code>/path/path/perl</code>, are <code>*</code> or <code>...</code> allowed to be used for the folders?</p>