[Foreigner]

maxvtb,

Код:

@echo off
setlocal

pushd "c:\folder-1"
for /f "tokens=*" %%i in ('dir /b *.txt') do call:copy "%%i"
popd
goto:eof

:copy
set "name=%~1"
if not exist "c:\folder-2\%name:~1%" (copy %1 "c:\folder-2\%name:~1%")