anchor.diff:  
   :label_userinput1
   REM Get user input
  -SET /P user_input=%filename%.txt already exists, do you want to overwrite it? [Y/N]:
  +SET /P user_input="%filename%.txt" already exists, do you want to overwrite it? [Y/N]:
   REM Check user input
   IF %user_input% == Y (
   	GOTO :label_filename_ok
  
positive.code: @ECHO off
  SETLOCAL
  
  REM Get name of this file
  SET filename=%~n0
  REM Check if a textfile with this name already file exists
  IF EXIST %filename%.txt (
  	GOTO :label_userinput1
  ) ELSE (
  	GOTO :label_filename_ok
  
negative.code: REM Add a number to the filename (e.g. file_1.txt)
  SET i=1
  :label_while1
  IF NOT EXIST "%filepath%%filename%_%i%.txt" (
  	GOTO :label_endwhile1
  )
  REM Increment i
  