title: One way synchronization two folders
body: <p>I have one folder called <code>OLD</code>. There is a directory structure inside it like:  </p>
  
  <pre><code>Old  
  ---DSL  
  ---------CI  
  ------------AppFolder1    
  ------------AppFolder2  
  ---------------------------FUN2    
  --------CA  
  ------------AppFolder1  
  </code></pre>
  
  <p>Inside each folder there may or may not be files.</p>
  
  <p>I have one folder called <code>NEW</code>, which has the updates and the depending upon the changes appropriate directory structure is inside it. The point is that it will be same as <code>OLD</code>. For example:  </p>
  
  <pre><code>NEW  
  ---DSL  
  ---------CI  
  ------------AppFolder2  
  ---------------------------FUN2  
  --------CA    
  </code></pre>
  
  <p>As you can see the directory structure (including folder names) as same. I want all files in <code>NEW</code> to replace appropriate files in <code>OLD</code>.</p>
  
  <p>Please provide me a starting point for it.</p>