Powershell：循环变量

Question

我正在尝试查询从一台服务器到多台远程服务器的端口，但我无法弄明白。

查询一台服务器的话还不错，但我想在 $destination 变量中添加多个远程服务器，让脚本循环遍历它们，一次性给出所有结果。

我找到的脚本：

$Servers = "127.0.0.1"
$Ports   =  "80",
            "445",
            "443"

$Destination = "Computer_1"
$Results = @()
$Results = Invoke-Command $Servers {param($Destination,$Ports)
            $Object = New-Object PSCustomObject
            $Object | Add-Member -MemberType NoteProperty -Name "ServerName" -Value 
$env:COMPUTERNAME
            $Object | Add-Member -MemberType NoteProperty -Name "Destination" -Value $Destination
                Foreach ($P in $Ports){
                    $PortCheck = (Test-NetConnection -Port $p -ComputerName $Destination ).TcpTestSucceeded
                    If($PortCheck -notmatch "True|False"){$PortCheck = "ERROR"}
                    $Object | Add-Member Noteproperty "$("Port " + "$p")" -Value "$($PortCheck)"
                }
            $Object
       } -ArgumentList $Destination,$Ports | select * -ExcludeProperty runspaceid, pscomputername

$Results | Out-GridView -Title "Testing Ports"

$Results | Format-Table -AutoSize

我得到结果：

ServerName Destination   Port 80 Port 445 Port 443 
---------- -----------   -------- -------- -------- 
<local host> Computer_1    True     True     True

我需要在 $destination 块中添加多个远程。我尝试了以下方法：

$Destination = "Computer_1","Computer_2"

但这不是正确的方法，因为我明白了：

ServerName Destination                     Port 80 Port 445 Port 443
---------- -----------                     -------- -------- -------- 
<local host> "Computer_1","Computer_2"     False    False    False

我需要得到这个结果：

ServerName Destination   Port 80 Port 445 Port 443 
---------- -----------   -------- -------- -------- 
<local host> Computer_1    True     True     True  
<local host> Computer_2    True     True     True

如有任何帮助，我们将不胜感激。

Answer 1

您在 $Destination 中传递了多个服务器，因此您需要遍历它们。相反，您只需将整个 $Destination 添加到 $Object

在伪代码中你需要像

$Results += foreach ($destServer in $ destination) {
   Invoke-Command {
   {same code you use currently}
   }
}

Answer 2

问题是您运行是 $ports 的 ForEach() 而不是 $destination。您想做更多像这样的事情：

$Servers = "127.0.0.1"
$Ports   =  "80",
            "445",
            "443"

$Destinations = "Computer_1","Computer_2"
$Results = @()
$Results = Invoke-Command $Servers {param($Destinations,$Ports)
    ForEach($Destination in Destinations){
        $Object = New-Object PSCustomObject
        $Object | Add-Member -MemberType NoteProperty -Name "ServerName" -Value $env:COMPUTERNAME
        $Object | Add-Member -MemberType NoteProperty -Name "Destination" -Value $Destination
        Foreach ($P in $Ports){
            $PortCheck = (Test-NetConnection -Port $p -ComputerName $Destination ).TcpTestSucceeded
            If($PortCheck -notmatch "True|False"){$PortCheck = "ERROR"}
            $Object | Add-Member Noteproperty "$("Port " + "$p")" -Value "$($PortCheck)"
        }
        $Object
    }
} -ArgumentList $Destinations,$Ports | select * -ExcludeProperty runspaceid, pscomputername

$Results | Out-GridView -Title "Testing Ports"
$Results | Format-Table -AutoSize

尽管如果您更熟悉 Powershell，使用管道将结果直接传递给 Out-GridView 的格式化方法会稍微简洁一些，而不是先将它们全部收集到一个数组中。

Powershell：循环变量

Powershell: Loop over variable

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