title: Find all unmerged files/elements in ClearCase
body: <p>We use ClearCase where I work and I'm trying to figure out how to find any files that have been modified but not merged up.  We have a main branch at the very top level in ClearCase, and this is where the final source code changes are merged to and where we do our formal release builds from.  We then have an integration branch under main where integration issues are worked out.  When we get everything working and tested in the integration branch, we merge the integration branch up to main.  For individual feature implementations and bug fixes, we create a new branch (usually named after an action, feature, or bugfix) off of the integration branch and work the issue.  When we are done with it, we merge that change up to the integration branch.</p>
  
  <p>I was wondering if anybody knew of a command or a way to see what files are modified in the feature/bug fix branches but were not merged back up to the integration branch.  I've been looking around but I can't seem to find a way to do it.  I would like to be able to run the command and have it tell me all files that have been modified on all of the sub-branches but not merged up.  Thanks.</p>