title: how to use env variables from properties file in jenkins
body: <p>I want that my jenkins job will use env variables from a properties file. is that possible, and how?<br>
  Thanks, Ohad.  </p>
  
  <p><strong><em>EDIT:</em></strong> I want environment variables to be resolved when checkout from svn, so that few projects will have the same revision. I am trying to use a solution suggested <a href="https://stackoverflow.com/questions/6755157/how-to-make-few-locations-use-the-same-svn-revision-in-jenkins">here</a>.</p>