title: ClearCase: Find files having exactly one specific label and not more
body: <p>I'd like to find files in ClearCase that are labeled with a specific label but that <strong>do not have any other labels set</strong>.</p>
  
  <p>For example, if I have files labeled like this:</p>
  
  <pre><code>file1 LBL_A, LBL_B
  file2 LBL_A
  </code></pre>
  
  <p>I'd like to have a query that gives me just file2 and not file1.</p>
  
  <p>Is there a way to do this with cleartool find? If this is not possible to do with a single query, I'd also be happy for any ideas how to do this in several steps (I'll be calling cleartool from a perl script, so it will be easy to save lists of files temporarily and run further commands on them).</p>
  
  <p>Thanks a lot in advance!</p>
  
  <p>Jan</p>