使用 Invoke-Command 修改 ScriptBlock 中的远程变量 [英] Modifying remote variables inside ScriptBlock using Invoke-Command

问题描述

是否可以修改远程变量?我正在尝试执行以下操作:

Is it possible to modify remote variables? I am trying to do something like the following:

$var1 = ""
$var2 = ""

Invoke-Command -ComputerName Server1 -ScriptBlock{
$using:var1 = "Hello World"
$using:var2 = "Goodbye World"
}

当我尝试此操作时出现错误:

When I try this I get the error:

The assignment expression is not valid.  The input to an assignment operator must be an object that is able to accept assignments, such as a variable or a property.

很明显，使用这种方法是行不通的，但是我可以采取其他任何方法吗?我需要在远程和本地范围内使用和修改这些变量

So obviously, it doesn't work using this method, but are there any other approaches I could take? I need to use and modify those variables in both a remote and local scope

推荐答案

所以你尝试做的事情是行不通的.但这里有一个解决方法.

So what you are trying to do wont work. But here is a work around.

将您想要返回的数据放入哈希表中，然后捕获结果并枚举它们并将值放入变量中.

Place your data you want returned into a hashtable and then capture the results and enumerate over them and place the value into the variables.

$var1 = ""
$var2 = ""

$Reponse = Invoke-Command -ComputerName Server1 -ScriptBlock{
    $Stuff1 = "Hey"
    $Stuff2 = "There"
    Return @{
        var1 = $Stuff1
        var2 = $Stuff2
    }
}

$Reponse.GetEnumerator() | %{
    Set-Variable $_.Key -Value $_.Value
}

$var1
$var2

这将返回

Hey
There

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