powershell - Powershell的Invoke-Command不会接受-ComputerName参数的变量吗？

Question

我在这里拉头发，因为我似乎无法使它正常工作，而且我不知道如何用Google搜索这个问题。我正在运行Powershell 2.0。这是我的脚本:

$computer_names = "server1,server2"
Write-Output "Invoke-Command -ComputerName $computer_names -ScriptBlock { 
    Get-WmiObject -Class Win32_LogicalDisk | 
    sort deviceid | 
    Format-Table -AutoSize deviceid, freespace 
}"
Invoke-Command -ComputerName $computer_names -ScriptBlock { 
    Get-WmiObject -Class Win32_LogicalDisk | 
    sort deviceid | 
    Format-Table -AutoSize deviceid, freespace 
}

最后一条命令给出错误:

Invoke-Command : One or more computer names is not valid. If you are trying to 
pass a Uri, use the -ConnectionUri parameter or pass Uri objects instead of 
strings.

但是，当我将Write-Output命令的输出复制到shell并运行该命令时，它就可以正常工作。如何将字符串变量转换为Invoke-Command将接受的内容？提前致谢!

Answer 1

您对数组的声明不正确。在字符串之间放置一个逗号，并将其通过管道传递给每个字符串，例如:

$computer_names = "server1", "server2";

$computer_names | %{
   Write-Output "Invoke-Command -ComputerName $_ -ScriptBlock {

    ...snip