powershell - 递归函数中属性值的缩短输出

Question

我想递归枚举所有 WMI 命名空间。我有这个功能:

function Get-WmiNamespace {
  Param(
    [parameter()]
    [string]$Namespace = 'root',
    [parameter()]
    [string]$Locale = 'MS_409',
    [parameter()]
    [switch]$Recurse
    )
  Begin {
    $WMIParams = @{
      Namespace = $Namespace
      Class = '__NAMESPACE'
      Locale = $Locale
      ErrorAction = 'SilentlyContinue'
      }
    }
  Process {
    Get-WmiObject @WMIParams |
      Sort-Object -Property Name -CaseSensitive -Culture "en-US" |
        ForEach-Object {
          $WMIParams.Namespace = "{0}\{1}" -f $_.__NAMESPACE, $_.Name
          $object = [PSCustomObject] @{
            Namespace = $WMIParams.Namespace
            }
          $object.PSTypeNames.Insert(0,'Wmi.Namespace.Name')
          $object
          if ($recurse) {
            $PSBoundParameters.Namespace = $WMIParams.Namespace
            Get-WMINamespace @PSBoundParameters
            }
          }
    }
  }

灵感来自这里:
[https://learn-powershell.net/2014/05/09/quick-hits-list-all-available-wmi-namespaces-using-powershell/]
我得到这个输出:

Namespace
---------
ROOT\Appv
ROOT\CIMV2
ROOT\CIMV2\mdm
ROOT\CIMV2\mdm\dmmap
ROOT\CIMV2\mdm\MS_405
ROOT\CIMV2\ms_405
ROOT\CIMV2\ms_409
ROOT\CIMV2\power
ROOT\CIMV2\power\m...
ROOT\CIMV2\power\m...
ROOT\CIMV2\Security
ROOT\CIMV2\Securit...
ROOT\CIMV2\Securit...
ROOT\CIMV2\Termina...
ROOT\CIMV2\Termina...
ROOT\Cli
ROOT\Cli\MS_405
ROOT\Cli\MS_409
ROOT\DEFAULT
ROOT\DEFAULT\ms_405
ROOT\DEFAULT\ms_409
ROOT\directory
ROOT\directory\LDAP
ROOT\directory\LDA...
ROOT\directory\LDA...
ROOT\Hardware
ROOT\Hardware\ms_405
ROOT\Hardware\ms_409
ROOT\Intel_ME
ROOT\IntelNCS2
ROOT\IntelNCS2\ms_409
ROOT\Interop
ROOT\Interop\ms_405
ROOT\Interop\ms_409
ROOT\Microsoft
ROOT\Microsoft\Hom...
ROOT\Microsoft\pro...
ROOT\Microsoft\Sec...
ROOT\Microsoft\Uev
ROOT\Microsoft\Win...
...
ROOT\Microsoft\Win...
ROOT\msdtc
ROOT\PEH
ROOT\Policy
ROOT\Policy\ms_405
ROOT\Policy\ms_409
ROOT\RSOP
ROOT\RSOP\Computer
ROOT\RSOP\User
ROOT\SECURITY
ROOT\SecurityCenter
ROOT\SecurityCenter2
ROOT\ServiceModel
ROOT\StandardCimv2
ROOT\StandardCimv2...
ROOT\StandardCimv2...
ROOT\StandardCimv2...
ROOT\StandardCimv2...
ROOT\subscription
ROOT\subscription\...
ROOT\subscription\...
ROOT\WMI
ROOT\WMI\ms_405
ROOT\WMI\ms_409

命名空间名称被截断。
我猜原因是 Name 列的宽度是在函数 Get-WmiNamespace 的第一次迭代中设置的。根据最长值( ROOT\SecurityCenter2 )。
可以通过管道输出到 Format-Table来修复。与 -AutoSize范围:

Namespace
---------
ROOT\Appv
ROOT\CIMV2
ROOT\CIMV2\mdm
ROOT\CIMV2\mdm\dmmap
ROOT\CIMV2\mdm\MS_405
ROOT\CIMV2\ms_405
ROOT\CIMV2\ms_409
ROOT\CIMV2\power
ROOT\CIMV2\power\ms_405
ROOT\CIMV2\power\ms_409
ROOT\CIMV2\Security
ROOT\CIMV2\Security\MicrosoftTpm
ROOT\CIMV2\Security\MicrosoftVolumeEncryption
ROOT\CIMV2\TerminalServices
ROOT\CIMV2\TerminalServices\ms_405
ROOT\Cli
ROOT\Cli\MS_405
ROOT\Cli\MS_409
...

解决这种行为的最佳方法是什么？

Answer 1

整个名称存储在命名空间属性中。如果你只想在命令输出中看到它，你可以使用 -ExpandProperty来自 Select-ObjectGet-WmiNamespace -Recurse | select -ExpandProperty namespace另外，只需添加 Sort显示全名

Get-WmiNamespace -Recurse | Sort