title: How do I see if the passenger gem is installed
body: <p>Not sure why this might be happening? I'm trying to get a ruby app I use working through Apache on port 80, but am stumbling at every hurdle :)</p>
  
  <pre><code>root../public/htdocs# bundle show passenger
  Could not find gem 'passenger'.
  Did you mean passenger?
  root../public/htdocs# gem install passenger
  Building native extensions.  This could take a while...
  Successfully installed passenger-5.0.21
  1 gem installed
  Installing ri documentation for passenger-5.0.21...
  Installing RDoc documentation for passenger-5.0.21...
  root../public/htdocs# bundle show passenger
  Could not find gem 'passenger'.
  Did you mean passenger?
  </code></pre>