title: How do I execute ruby template files (ERB) without a web server from command line?
body: <p>I need <strong>ERB</strong> (Ruby's templating system) for templating of non-HTML files.<br>
  <em>(Instead, I want to use it for source files such as .java, .cs, ...)</em></p>
  
  <p>How do I <strong>"execute"</strong> Ruby templates from command line?</p>