[Iska]

Как-то так:

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Код:

@echo off
setlocal enableextensions enabledelayedexpansion

set sMachineList=in.txt
set sResultFile=out.txt

if exist "%sMachineList%" (
	>"%sResultFile%" (
		for /f "usebackq" %%i in ("%sMachineList%") do (
			ping.exe -n 1 %%~i | >nul find.exe /i "TTL=" && echo %%i
		)
	)
) else (
	echo Machine list file [%sMachineList%] not found.
	exit /b 1
)

endlocal
exit /b 0