---

@echo off
setlocal enabledelayedexpansion
set text=   PRIVET BRAT   WELCOME   !!!
:loop
for /l %%i in (0,1,50) do (
    set line=!text:~%%i! !text:~0,%%i!
    cls
    echo !line!
    timeout /t 0 >nul
)
goto loop