[sov44]

Решено!

Код:

@Echo Off
SetLocal enabledelayedexpansion
  For /F "Delims=" %%I In ('Dir c:\*.log /B/S/A:-D-H 2^>nul') Do (
      Echo %%I
      2>&1 del /q "%%I" | 1>nul findstr "."
      if errorlevel 1 (set /a iSumL +=%%~zI) else (set iSumL=0)
)
Echo !iSumL!
pause>nul