[greg zakharov]

Код:

@echo off
  setlocal enabledelayedexpansion
    set "time=%time:~0,8%"
    set "now=%date:.=%_%time::=%"
    
    for /f %%i in ('find /v /c "" ^< copyfile.ini') do set "n=%%i"
    3<copyfile.ini (
      for /l %%i in (1, 1, %n%) do (
        set /p blo=<&3
        echo C:\!blo:g:\=!\!now!
      )
    )
  endlocal
exit /b

[darkelfsfx]

Спасибо. Принцип понял.