title: Files being used by a unix process
body: <p>The <strong><code>fuser</code></strong> command lets me know which processes are using a file or directory.</p>
  
  <p>I'm looking for command that does the opposite:  lets me know which files are being used by a process.</p>
  
  <hr>
  
  <h2>Update</h2>
  
  <p>Forgot to mention that it's for a Solaris system.</p>