将子进程的输出重定向到父进程 - Powershell [英] Redirecting Output on Child Process to Parent Process - Powershell

问题描述

我有 powershell 进程，我正在调用 Start-Process 或 System.Diagnostic.Process 以作为不同的用户启动子进程(以获取其他用户的环境变量)

i have powershell process and I am calling Start-Process or System.Diagnostic.Process to start a child process as a different user (to get the other-user environment variables)

我尝试使用重定向输出，但它不起作用.下面是代码

I tried with redirectoutput but it does not work. Below is the code

    $process = New-Object System.Diagnostics.Process
    $startinfo = New-Object "System.Diagnostics.ProcessStartInfo"

    $startinfo.FileName = "powershell"
    $startinfo.UserName = $user
    $startinfo.Password = $pass
    $startinfo.Arguments = $arguments        
    $startinfo.UseShellExecute = $False
    $startinfo.RedirectStandardInput = $True

    $process.StartInfo = $startinfo
    $process.Start() | Out-Null
    $process.WaitForExist()
    $output = $process.StandardOutput.ReadToEnd()        

此外，我试图以最小化或隐藏的方式运行此进程，但它不起作用.

Also I am trying to run this process as Minimized or Hidden but it does not work.

任何帮助将不胜感激问候阿贾克斯

Any help will be really appreciated Regards Ajax

推荐答案

这里有一个功能可以满足您的需求:

Here's a function that'll do what you want:

function Invoke-PSCommandAsUser
{
    param(
        [System.Management.Automation.PSCredential]$cred, 
        [System.String]$command
    );

    $psi = New-Object System.Diagnostics.ProcessStartInfo

    $psi.RedirectStandardError = $True
    $psi.RedirectStandardOutput = $True

    $psi.UseShellExecute = $False
    $psi.UserName = $cred.UserName
    $psi.Password = $cred.Password

    $psi.FileName = (Get-Command Powershell).Definition
    $psi.Arguments = "-Command $command"

    $p = [Diagnostics.Process]::Start($psi)
    $p.WaitForExit()

    Write-Output $p.StandardOutput.ReadToEnd()
}

根据 MSDN，如果您使用 Process.Start 作为机制，您将无法运行此隐藏

According to MSDN you won't be able to run this hidden if you use Process.Start as the mechanism

如果 StartInfo 实例的 UserName 和 Password 属性是设置，调用非托管的 CreateProcessWithLogonW 函数，它即使 CreateNoWindow 属性在新窗口中启动进程值为 true 或 WindowStyle 属性值为 Hidden.- 来源

If the UserName and Password properties of the StartInfo instance are set, the unmanaged CreateProcessWithLogonW function is called, which starts the process in a new window even if the CreateNoWindow property value is true or the WindowStyle property value is Hidden. - source

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