[kiripanda]

Код:

set "src=c:\src"
set "dst=z:\dst"

for /f "delims=" %%a in ('echo n^|xcopy "%src%" "%dst%" /dsl') do (
  if "%%a" == "0 файл(а,ов)" (
    echo OK "%src%" "%dst%">log.log
  ) else (
    echo FU "%src%" "%dst%">log.log
    goto:eof
  )
)