title: Jenkins groovy script to get triggered build number
body: <p>I'm trying to write down a script that will get the Build Number of a Build that has been triggered by another job. For example:
  I have a build job that calls two other jobs(Call/trigger builds on other project). When the main job is finished with success I would like to get the number of the first build job that was triggered from within. The script I'm trying to run founds the main job, however I can't get in any way the build number of the triggered job.</p>
  
  <pre><code> def job = jenkins.model.Jenkins.instance.getItem("Hourly")
  job.builds.each {
  def build = it
  if (it.getResult().toString().equals("SUCCESS")) {The rest of the code should go here!}
  </code></pre>
  
  <p>I was trying to find it in the Jenkins java-doc API and online, however without any luck. Can somebody please help me with that?</p>
  
  <p>P.S. The script runs after the job has finished(triggered when needed only).</p>