从2个cmdlet输出的选择对象 [英] Select-Object with output from 2 cmdlets

问题描述

假设我具有以下PowerShell脚本:

Suppose I have the following PowerShell script:

Get-WmiObject -Class Win32_Service | 
Select DisplayName,@{Name="PID";Expression={$_.ProcessID}} |
Get-Process |
Select Name,CPU

这将:

第1行:在本地计算机上获取所有服务

Line 1: Get all services on the local machine

第2行:使用DisplayName和PID创建一个新对象.

Line 2: Create a new object with the DisplayName and PID.

第3行:调用Get-Process获取有关每个服务的信息.

Line 3: Call Get-Process for information about each of the services.

第4行:使用进程名称和CPU使用率创建一个新对象.

Line 4: Create a new object with the Process Name and CPU usage.

但是，在第4行中，我也想拥有在第2行中获得的DisplayName-可以吗?

However, in Line 4 I want to also have the DisplayName that I obtained in Line 2 - is this possible?

推荐答案

一种方法是在收集所需属性后输出自定义对象.示例:

One way to do this is to output a custom object after collecting the properties you want. Example:

Get-WmiObject -Class Win32_Service | foreach-object {
  $displayName = $_.DisplayName
  $processID = $_.ProcessID
  $process = Get-Process -Id $processID
  new-object PSObject -property @{
    "DisplayName" = $displayName
    "Name" = $process.Name
    "CPU" = $process.CPU
  }
}

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