title: elixir command line '-pa' options
body: <p>I'm looking at Elixir code in a project where the start-up script is:</p>
  
  <pre><code>elixir -pa _build/&lt;a directory with .beam files&gt; -S  mix run -e "MyApp" --no-deps-check --no-compile --no-halt
  </code></pre>
  
  <p>I'm curious what the <code>-pa</code> flag option.  I couldn't find a man page or help page for elixir.</p>
  
  <pre><code>$ man elixir
  No manual entry for elixir
  </code></pre>
  
  <p>Is there online documentation for other command-line options for elixir?</p>