Windows管理脚本学习

WMI  --  Windows Management Instrumentation
相关链接：

微软《脚本指南》：http://www.microsoft.com/china/technet/community/columns/scripts/default.mspx
MSDN WMI Scripting Primer：http://www.microsoft.com/china/technet/archives/columns/scripts/sg0103.asp

脚本示例1，显示本机总内存
strComputer = "."
Set wbemServices = GetObject("winmgmts:\\" & strComputer)
Set wbemObjectSet = wbemServices.InstancesOf("Win32_LogicalMemoryConfiguration")
For Each wbemObject In wbemObjectSet
    WScript.Echo "Total Physical Memory (kb): " & wbemObject.TotalPhysicalMemory
Next

脚本示例2，
strComputer = "."

Set objWMIService = GetObject("winmgmts://" & strComputer & "/root/cimv2")

strWQL = "SELECT * " & _
         "FROM __InstanceCreationEvent " & _
         "WITHIN 2 " & _
         "WHERE TargetInstance ISA 'Win32_Process' " & _
         "AND   TargetInstance.Name = 'notepad.exe'"

WScript.Echo "Waiting for a new instance of Notepad to start..."
Set objEventSource = objWMIService.ExecNotificationQuery(strWQL)
Set objEventObject = objEventSource.NextEvent()
WScript.Echo "A new instance of Notepad was just started."

在脚本中使用外壳(SHELL)程序
Set objShell = Wscript.CreateObject("Wscript.Shell")
objShell.Run "notepad"  '运行记事本

调用命令程序(%COMSPEC%环境变量调用相应操作系统的cmd.exe 或 command.exe)运行脚本，并保持console窗口：
Set objShell = CreateObject("WScript.Shell")
objShell.Run "%COMSPEC% /k ipconfig"

使用objShell的exec方法代替run方法可将运行返回一个WshScriptExec对象，可对结果显示做更多的控制。

运行脚本exam.vbs：
在命令行下输入：cscript exam.vbs

使用重定向符将脚本运行结果输出到文本文件：
cscript exam.vbs > output.txt   //覆盖方式
cscript exam.vbs >> output.txt  //保留添加方式

使用filesystemobject输出到文件：
Set objFS = CreateObject("Scripting.FileSystemObject")
Set objNewFile = objFS.CreateTextFile("output.txt")
objNewFile.WriteLine "Header Information -- Date: " & Now()
objNewFile.Close

脚本主机Script Host:
Wscript.exe 基于GUI窗口
Cscript.exe 基于控制台命令Console

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