如果在多台带有 -Quiet 的计算机上使用测试连接，我如何知道哪个结果适用于哪台计算机? [英] If using Test-Connection on multiple computers with -Quiet how do I know which result is for which computer?

问题描述

如果在多台带有 -Quiet 的计算机上使用测试连接，我如何知道哪个结果适用于哪台计算机?

If using Test-Connection on multiple computers with -Quiet how do I know which result is for which computer?

例如

$computers = ("PC1","PC2","PC3")

$results = Test-Connection -ComputerName $computers -count 2 -quiet

编辑以显示我在下面的讨论中提出的观点

EDITED TO SHOW POINT I AM MAKING IN DISCUSSION BELOW

不使用 -quiet

$computers = ("PC1","PC2","PC3")

$results = Test-Connection -ComputerName $computers -count 2 

PC3 没有响应所以出错

PC3 not responding so get error

Test-Connection : 测试连接到计算机PC3"失败:没有这样的主机在 line:3 char:16

Test-Connection : Testing connection to computer 'PC3' failed: No such host is known At line:3 char:16

$results 只包含那两台可以工作的计算机

And $results only contains those 2 computers which worked

如何让 $results 包含所有 3 台计算机的结果 - PC3 处于故障状态

How to get $results to contains results for all 3 computers - with status of failure for PC3

推荐答案

为了在结果中存储单个计算机的故障状态，我认为唯一的方法是在单个计算机上调用 Test-Connection.这样您就可以检查每个 ping 的 $null 结果.

To store failure status for individual computers in the result, I think the only way is to call Test-Connection with single computer. This way you can check for $null result of each ping.

为了仍然并行运行查询，您可以使用 ForEach-Object -Parallel，如下例所示.

In order to still run the queries in parallel, you could use ForEach-Object -Parallel as in the following example.

$computers = 'localhost', '0.0.0.0', '127.0.0.1'

# Do one call to Test-Connection per computer, but still in parallel
$results = $computers | ForEach-Object -Parallel {

    # $status will be $null on critical error
    $status = Test-Connection -ComputerName $_ -count 2 -quiet

    # This implicitly adds an object with Computer name and status to the output array $result
    [PSCustomObject]@{
        Computer = $_
        Status   = if( $null -ne $status ) { $status } else { 'Failure' }
    }
}

# Sort the results on the computer index
$results | Sort-Object { $computers.IndexOf( $_.Computer ) }

输出:

Computer   Status    
--------   ------    
localhost    True    
0.0.0.0   Failure    
127.0.0.1    True 

Sort-Object 调用存在是因为 $results 数组可以按任何顺序排列.这取决于计算机的响应速度.

The Sort-Object call is there because the $results array can be in any order. It depends on how fast the computers respond.

除了输出Failure"之外，您还可以输出错误详细信息.您可以通过 $Error[0] 获取最后一条错误记录.

Instead of outputting "Failure", you could also output error details. You could get the last error record through $Error[0].

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