title: bash: spec: command not found
body: <p>I installed <code>rspec</code> gem. I got following message</p>
  
  <pre><code>Successfully installed rspec-2.11.0
  1 gem installed
  Installing ri documentation for rspec-2.11.0...
  Installing RDoc documentation for rspec-2.11.0...
  </code></pre>
  
  <p>but when I run </p>
  
  <pre><code>  spec path/to/file.rb
  </code></pre>
  
  <p>I get</p>
  
  <pre><code>-bash: spec: command not found
  </code></pre>
  
  <p>Any solution on this?</p>