title: Updating Model from Console in Ruby on Rails
body: <p>I looked around and this seems simple but I can't find the answer.
  I'm very new at RoR (as in just started learning today) so let me know if my terminology is wrong!</p>
  
  <p>How do I modify a model's attributes from the RoR console?</p>
  
  <p>Where I am:</p>
  
  <ul>
  <li>created new app</li>
  <li>created new controller ($ rails generate controller textbooks)</li>
  <li>added routing (added "resources :textbooks" to routes.rb)</li>
  <li>created model with one attribute ($ rails generate model textbook title:string)</li>
  <li>Added to DB ($ rake db:migrate)</li>
  </ul>
  
  <p>How do I add a new attribute from the console?</p>