title: Is there a Perl module that works similarly to the Unix "which" command?
body: <p>I was on Perlmonks and found this great listing:</p>
  
  <p><a href="http://www.perlmonks.org/?node_id=627015" rel="noreferrer" title="Perl analogs to UNIX Commands">http://www.perlmonks.org/?node_id=627015</a></p>
  
  <p>But it was missing "which", the function that searches for an executable in all the directories in your PATH. (I am porting a Perl script to Windows.)</p>
  
  <p>Is there a Perl module that simulates this?</p>