title: Jenkins. How to change file content
body: <p>I've created a new project in Jenkins.
  But now I want to change some information in my .properties file
  How can I do that? (I've already read about Environment Injector, but I don't think, that it's what I need)</p>
  
  <p>So, and one more questions - will this changes commit in file? (I don't want to do that)</p>
  
  <p>Thank you!</p>