How to execute command via Wscript.Shell object? | MiniCoder

本文介绍了WshShell对象的功能及使用方法，通过该对象可以实现与Windows Shell的交互，包括执行命令、操作注册表和环境变量等。文章还提供了一个执行命令的示例函数。

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What is Wscript.Shell?

There is a powerful programming object to interact various aspect of windows shell. You can run executable application , work with the Reigistry and even control Windows' environment variables with the help of Wscript.Shell object. We can call its genric name WshShell.

'Description:
'    Function to execute a commond via WScript.Shell
'Input: 
'    cmdStr: The command to be executed    
'Output:
'    execute_Shell: 
'        [false]: The default result of the function
'        [stdErrText]: The error message throw out from shell object
'        [stdOutText]: The return message from shell object
'Throw Exception When:
'    none
public function execute_Shell(cmdStr)
    on error resume next
        execute_Shell = false
        set wshObj = CreateObject("Wscript.Shell")
        set wshResult = wshObj.Exec(cmdStr)
        
        stdOutText = wshResult.StdOut.ReadAll()
        stdErrText = wshResult.StdErr.ReadAll()
        
        if stdErrText <> "" then
            execute_Shell = stdErrText 
        else
            execute_Shell = stdOutText
        end if

        set wshObj = nothing
    on error goto 0
end function