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findstr /ivc:"202.115.22.199" C:\WINDOWS\system32\drivers\etc\hosts > b.txt
@echo off findstr /rvc:"IP" %WINDIR%\system32\drivers\etc\Hosts >>%windir%\system32\drivers\etc\test.txt attrib -r %windir%\system32\drivers\etc\hosts del /f/s/q %windir%\system32\drivers\etc\hosts ren %windir%\system32\drivers\etc\test.txt %windir%\system32\drivers\etc\hosts