title: Ubuntu 12 - how to install Ruby and Rails correctly
body: <p>I read a lot of articles regarding installing <code>Ruby 1.9</code> and Ruby on <code>Rails 3.2.3</code> on <code>Ubuntu 12</code>. And I've installed them previously. But it took much time, about 5 days. I made many mistakes and I was very tired of that.</p>
  
  <p>Now I need to do it again. Obviously I want it to be effortless and correct. Like in Windows using Rails installer and Ruby installer. </p>
  
  <p>Can anyone give me a link about how to install them correctly(!)? Or maybe you know the right way?</p>