title: Gem install doesn't create link to bin
body: <p>I'm trying to install <code>cocoapods</code> on Mac</p>
  
  <pre><code>Successfully installed cocoapods-0.25.0
  1 gem installed
  </code></pre>
  
  <p>But</p>
  
  <pre><code>$ pod install
  -bash: pod: command not found
  </code></pre>
  
  <p>Ruby was installed using <code>brew</code></p>
  
  <pre><code>$ which ruby
  /usr/local/bin/ruby
  
  $ which gem
  /usr/local/bin/gem
  </code></pre>
  
  <p>Here is output of <code>gem environment</code></p>
  
  <pre><code>$ gem environment
  RubyGems Environment:
    - RUBYGEMS VERSION: 2.0.3
    - RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.5.0]
    - INSTALLATION DIRECTORY: /usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0
    - RUBY EXECUTABLE: /usr/local/Cellar/ruby/2.0.0-p247/bin/ruby
    - EXECUTABLE DIRECTORY: /usr/local/Cellar/ruby/2.0.0-p247/bin
    - RUBYGEMS PLATFORMS:
      - ruby
      - x86_64-darwin-12
    - GEM PATHS:
       - /usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0
       - /Users/nt/.gem/ruby/2.0.0
    - GEM CONFIGURATION:
       - :update_sources =&gt; true
       - :verbose =&gt; true
       - :backtrace =&gt; false
       - :bulk_threshold =&gt; 1000
       - "install" =&gt; "--no-rdoc --no-ri"
       - "update" =&gt; "--no-rdoc --no-ri"
    - REMOTE SOURCES:
       - https://rubygems.org/
  </code></pre>
  
  <p>What I should export or add to .bash_profile to get <code>pod install</code> working?</p>