title: Modify file content using batch file
body: <p>I need to create a batch file using which we can modify the content of a file.</p>
  
  <p>For example</p>
  
  <p>Testing.txt file contains a line
  Description=MAN_Human
  change to
  Description=MAN_Human_V2</p>
  
  <p>only add (_V2) at the end of the MAN</p>
  
  <p>So when we open the file we have description name MAN_Human_V2 instead MAN only.</p>
  
  <p>i have multiple files to work on. Please help.</p>