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Command line: Exit
Quits the CMD.EXE program (command interpreter) or the current batch
script.

EXIT [/B] [exitCode]
/B specifies to exit the current batch script instead of CMD.EXE. If executed from outside a batch script, it will quit CMD.EXE
exitCode specifies a numeric number. if /B is specified, sets ERRORLEVEL that number. If quitting CMD.EXE, sets the process exit code with that number.