title: Determine perforce users that have a file checked out
body: <p>I have read these questions: </p>
  
  <ul>
  <li><a href="https://stackoverflow.com/questions/7828144/list-of-checked-out-files-by-others-in-perforce">List of checked out files by others in Perforce</a></li>
  <li><a href="https://stackoverflow.com/questions/3875303/perforce-file-locked-by-departed-user">Perforce File Locked By Departed User</a></li>
  </ul>
  
  <p>However these both deal with finding all the checked out files for a user. This is very useful, but I need to go the other way; what I really want to do is see <strong>who has checked out a particular file</strong>. Having read <a href="http://www.perforce.com/perforce/doc.current/manuals/cmdref/p4_opened.html" rel="noreferrer">the P4 docs</a>, I see no way to do this.</p>
  
  <p>Is there a way in P4 I can check who all has checked out a particular file?</p>