title: How to copy all *.txt files from subfolder to batch file folder using this batch-file?
body: <p>I have main folder that contains "batch.bat" file and 1 subfolder named "Carrol".
  This "Carrol" subfolder contains many files with different types.
  I need to copy all txt files from "Carrol" subfolder to main folder with this "batch.bat" using commands of this "batch.bat" file</p>
  
  <p>How can I do that?</p>