title: Ruby on Rails robots.txt folders
body: <p>I'm about to launch a Ruby on Rails application and as the last task, I want to set the <em>robots.txt</em> file. I couldn't find information about how the paths should be written properly for a Rails application.</p>
  <p>Is the starting path always the root path from the Ruby on Rails application or the app folder? How would I then disallow, e.g., the <em>img</em> folder?</p>
  <p>Do I have to write the paths as I see it in the <em>app</em> folder, or like how the paths look like on the site online, e.g. <a href="http://example.com/admin" rel="nofollow noreferrer">http://example.com/admin</a>?</p>