title: Error installing SASS gem - don't have permissions
body: <p>I'm not well versed in terminal, but I'll try my best to make this as clear and concise as I can.</p>
  
  <p>I'm trying to install <strong>SASS</strong> and get the following errors:  </p>
  
  <p>When using <code>gem install sass</code> I get .  </p>
  
  <pre><code>ERROR:  While executing gem ... (Gem::FilePermissionError)
      You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.
  </code></pre>
  
  <p>When using <code>sudo gem install sass</code> I get .  </p>
  
  <pre><code>ERROR:  While executing gem ... (Gem::FilePermissionError)
      You don't have write permissions for the /usr/bin directory.
  </code></pre>
  
  <p>I have <strong>Xcode</strong> installed and I have agreed to the terms.</p>
  
  <p>I even tried updating my Ruby, but terminal tells me I already have the most updated version.   </p>
  
  <pre><code>ruby 2.3.3p222 (2016-11-21 revision 56859) [universal.x86_64-darwin17]
  </code></pre>
  
  <p>The worst part of all of this is that when I navigate to my <strong>Ruby/Gems/2.3.0/gems</strong> directory, there is a <code>sass-3.5.5</code> folder!!! (linked image to follow)</p>
  
  <p><a href="https://i.stack.imgur.com/B3lM6.png" rel="nofollow noreferrer">Ruby directory path to sass folder</a></p>
  
  <p>I try running <code>sass -v</code> and get <code>-bash: sass: command not found</code></p>
  
  <p>I feel like I've tried everything that I can think of or find online. I'm at a loss and definitely need some help.</p>