一个简单检查IP连通性的batch

::check server interfaces is active
@echo off
if exist checklist.txt del /q checklist.txt
for /f %%i in (ipadd.txt) do (@ping -w 20 -n 2 %%i >nul||if errorlevel 1 echo %%i need check! & echo %%i >>checklist.txt)
if not exist checklist.txt echo It's Ok!
pause