title: How would I run the "start" command on Mac?
body: <p>I'm following <a href="http://guides.rubygems.org/ssl-certificate-update/" rel="nofollow noreferrer">this</a> guide on fixing a RubyGems SSL issue. I'm stuck on step 2, where they use the <code>start</code> command. Mac doesn't have this, so according to <a href="https://apple.stackexchange.com/questions/124790/what-is-the-mac-equivalent-of-windows-start-command">this</a> discussion I used <code>open</code> instead. This opened up code in Xcode, but the tutorial seemed to imply it would open a file browser to get to the ssl_certs directory. Is <code>open</code> not equivalent to <code>start</code> and if so what should I use? Or is using open correct and I'm doing something else wrong?</p>
  
  <p>What I typed: <code>Alexs-MBP:~ alextyshka$ open .rbenv/versions/2.2.0/lib/ruby/site_ruby/2.2.0/rubygems.rb</code></p>
  
  <p>What Xcode opened:
  <a href="https://i.stack.imgur.com/wiWb1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wiWb1.png" alt="What Xcode opened"></a></p>