@echo off&setlocal enabledelayedexpansion

del /f/q tmp.txt 2>nul

for /f "delims=" %%a in ('dir /b d:\mutxt\*.txt') do echo !random!!random!=%%a>>tmp.txt

for /f "tokens=2 delims==" %%b in ('type tmp.txt^|sort') do (

  if !n! equ 2 goto :next

  set /a n+=1

  set x!n!=%%b

)

:next

echo del /f/q "d:\mutxt\%x1%"

echo copy /y e:\pide.txt "d:\mutxt\%x2%"

del tmp.txt

pause