title: How to read a lot of txt file in specific folder using python
body: <p>Please help me, i have some file txt in folder. I want to read and summary all data become one file txt. How can I do it with python.
  for example :</p>
  
  <pre><code>folder name : data
  file name in that folder : log1.txt
                             log2.txt
                             log3.txt
                             log4.txt
  data in log1.txt : Size:         1,116,116,306 bytes
  data in log2.txt : Size:         1,116,116,806 bytes
  data in log3.txt : Size:         1,457,116,806 bytes
  data in log4.txt : Size:         1,457,345,000 bytes
  </code></pre>
  
  <p>My expected output: </p>
  
  <pre><code>   a file txt the result.txt and the data is : 1,116,116,306 
                                                 1,116,116,806 
                                                 1,457,116,806 
                                                 1,457,345,000  
  </code></pre>