Hi username! ^_^

Welcome onboard!

	From Infra Team.
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@echo off
setlocal enabledelayedexpansion
(for /f "tokens=1* delims=:" %%a in ('type "test.txt" ^| findstr /n ".*"') do (
  set "line=%%b"
  if "!line!" == "" (echo,) else (
    set "line=!line:username=%username%!"
    echo,!line!
  )
)) >> %userprofile%\Desktop\"Welcome.txt"
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@echo off
cd /d "%~dp0"
(for /f "tokens=1* delims=:" %%a in ('type "test.txt" ^| findstr /n ".*"') do (
    set "line=%%b"
    setlocal enabledelayedexpansion
    if "!line!" == "" (
        echo,
    ) else (
        echo,!line:username=%username%!
    )
    endlocal
))>"%userprofile%\Desktop\Welcome.txt"
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