title: mac how to save alias in computer
body: <p>I created an alias on terminal, such as</p>
  
  <pre><code>alias hw="cd Desktop/2015hw"
  </code></pre>
  
  <p>but after I closed the terminal and do hw, there is an error message said there is no hw command.</p>
  
  <p>I was wondering if we can save the alias on the computer.
  Also, if we have stored the alias on the computer, how would we check it? By check it, I mean like list all alias we have stored.
  Thanks.</p>