title: with svn, check the revision number when offline
body: <p>I'm offline (well, to be exact my svn repository in unreachable right now), but I have a fully fledged working copy on which I am, well, working :-)</p>
  
  <p>Now I need to know the revision number of a file. How can I check the revision number of a particular file (which by the way doesn't have the <code>svn:keywords</code> property) while being offline?</p>
  
  <p>I usually check them with <code>svn ls -v</code> or <code>svn log | head</code> or <code>svn blame</code> (of course they give more than I'm looking for right now).</p>