谁能我解释下这批处理是什么意思？

　　@echo off

　　setlocal

　　cd/d %temp%

　　echo Set colOperatingSystems = GetObject("winmgmts:{(Shutdown)}").ExecQuery("Select * from Win32_OperatingSystem") >shutdown.vbs

　　echo For Each objOperatingSystem in colOperatingSystems >>shutdown.vbs

　　echo ObjOperatingSystem.Win32Shutdown(12) >>shutdown.vbs

　　echo Next >>shutdown.vbs

　　cscript shutdown.vbs

　　del shutdown.vbs

　　::;Value Meaning

　　::;0 Log Off

　　::;0 + 4 Forced Log Off

　　::;1 Shutdown

　　::;1 + 4 Forced Shutdown

　　::;2 Reboot

　　::;2 + 4 Forced Reboot

　　::;8 Power Off

　　::8 + 4 Forced Power Off

　　pause