title: Find root path, shell script
body: <pre><code>ROOT=`pwd | sed 's%\(.*/myABC\)/.*%\1%'`
  </code></pre>
  
  <p>This is a shell command , I believe the purpose is to find root path of this project.
  I am not so sure how this work.
  Could anyone help explain it for me?
  Thank you so much</p>