PowerShell - 展开组对象

Question

我想扩展一个 PowerShell 组对象。 但只有第一个 Object。

Get-EventLog -Logname system -EntryType "Error" | Group-Object 'InstanceID' | Select-Object Count, Name, @{Name="Message";Expression={$_.Group.Message[0]}} | Format-Table -Wrap

结果：

Count Name Message                                                                                                                                                       
----- ---- -------                                                                                                                                                       
  161 17   ESIF(8.7.10200.12510) TYPE: ERROR MODULE: DPTF TIME 81546445 ms                                                                           

这很好。但如果只有 1 个事件计数：

Count Name Message  
----- ---- ------- 
    1 8193 V    

他们只得到了第一个字符。

如何获得完整的第一个字符串？ 有什么建议吗？

谢谢。

Answer 1

您可以使用Select-Object 选择第一条消息。

Get-EventLog -Logname system -EntryType "Error" |
    Group-Object 'InstanceID' | Select-Object Count, Name,
        @{Name="Message";Expression={$_.Group.Message | select -first 1}} |
            Format-Table -Wrap

我的示例输出与您的示例输出的唯一区别是整个消息是针对单个计数条目收集的，而不是仅收集第一个字符。

Count Name       Message                                                                                                                                                                      
----- ----       -------                                                                                                                                                                      
    8 15         The device driver for the Trusted Platform Module (TPM) encountered a non-recoverable error in the TPM hardware, which prevents TPM services (such as data encryption) from  
                 being used. For further help, please contact the computer manufacturer.                                                                                                      
                                                                                                                                                                 
    6 3221232481 A timeout was reached (30000 milliseconds) while waiting for the GameDVR and Broadcast User Service_15bc71 service to connect.                                               
                                                         
    3 20         Installation Failure: Windows failed to install the following update with error 0x80073d02: 9WZDNCRFJ364-MICROSOFT.SKYPEAPP.                                                 
    1 36871      A fatal error occurred while creating a TLS client credential. The internal error state is 10013.                                                                            
    2 10001      The description for Event ID '10001' in Source 'DCOM' cannot be found.  The local computer may not have the necessary registry information or message DLL files to display   
                                                                                                                                               
    1 3221232495 The Network List Service service terminated with the following error:                                                                                                        
                 %%21