PowerShell 脚本中的 WMI 事件过滤器查询

Question

我正在尝试使用其他人编写的 PowerShell 脚本将两个不同的 WMI 事件添加到 SCCM 服务器。我必须将两个事件查询合并为一个查询，但我不确定如何最好地做到这一点。到目前为止，我已经尝试了很多不同的方法。这是代码：

Function WMI-InstanceFilter
{
# Function Started
LogTraceMessage "*** Function WMI-InstanceFilter Started ***"
Write-Verbose "*** Function WMI-InstanceFilter Started ***"

$PropertyHash = @{
    QueryLanguage = "WQL";
    Query = "";
    Name = "Name";
    EventNameSpace="root/sms/site_$($SiteCode)"
    }

$Script:InstanceFilter = New-CimInstance -Namespace root/subscription -ClassName __EventFilter -Property $PropertyHash -Verbose -ErrorAction Stop

这是我需要以某种方式组合并放入查询行的两个事件查询：

SELECT * FROM __InstanceOperationEvent Within 900 Where TargetInstance ISA 'SMS_Package' and TargetInstance.Name like 'drivers - %'"

SELECT * FROM __InstanceOperationEvent Within 300 Where TargetInstance ISA 'SMS_Package' and TargetInstance.Name like 'BIOS - %'"

最好的方法是什么？

Answer 1

您在查询中处理 WQL，您只能有一个 WITHIN 值 - 请参阅 https://docs.microsoft.com/en-gb/windows/desktop/WmiSdk/within-clause 因此您必须选择 300（秒 = 5 分钟）或 900（秒 = 15 分钟）或介于两者之间的折衷值。

您的合并 SELECT 语句如下所示

SELECT * FROM __InstanceOperationEvent WITHIN 900 WHERE TargetInstance ISA 'SMS_Package' AND TargetInstance.Name LIKE 'drivers - %' OR TargetInstance.Name LIKE 'BIOS - %'

将 WITHIN 值更改为您认为最适合您需要的值。

您是否同时需要驱动器和 bios，或者您可以使用参数驱动的 switch 语句在它们之间进行交换吗？

像这样

Function WMI-InstanceFilter {
[CmdletBinding()]
param (
  [ValidateSet('Bios', 'Drivers' )]
  [string]$InstanceType
)

# Function Started
LogTraceMessage "*** Function WMI-InstanceFilter Started ***"
Write-Verbose "*** Function WMI-InstanceFilter Started ***"

switch ($InstanceType) {
 'Bios' {
          $query = "SELECT * FROM __InstanceOperationEvent Within 900 Where TargetInstance ISA 'SMS_Package' and TargetInstance.Name like 'drivers - %'"
        }
  'Drivers' {
          $query = "SELECT * FROM __InstanceOperationEvent Within 300 Where TargetInstance ISA 'SMS_Package' and TargetInstance.Name like 'BIOS - %'"
        }
}

$PropertyHash = @{
    QueryLanguage = "WQL"
    Query = $query
    Name = "Name"
    EventNameSpace="root/sms/site_$($SiteCode)"
    }

$Script:InstanceFilter = New-CimInstance -Namespace root/subscription -ClassName __EventFilter -Property $PropertyHash -Verbose -ErrorAction Stop
}

PowerShell 脚本中的 WMI 事件过滤器查询

WMI event filter query in PowerShell script

powershell

wmi

wql