Question

我试图创建一个Powershell脚本，如果经过一定天数后仍未在工作站Windows 10上登录帐户，则会删除该帐户。

该脚本将在本地而非远程运行。我认为iam非常接近解决方案，但是由于某种原因，即使我按照@microsoft的说明进行操作，iam也无法删除带有参数inputobject的帐户。

例如，iam试图删除帐户3和2，因为它们具有相似的LastUseTime日期。

帐户-LastUseTime

testuser3 - 20190625   
testuser2 - 20190625   
testuser1 - 20190629

代码：

<# Change Value to remove account after a certain days #>
     $DaysFilterAccounts = (get-date (Get-Date).AddDays(-6) -UFormat "%Y%m%d")

<# $CheckLastUseTime
   Get all UserProfiles, Filter Service and Admin-accounts
   Select and convert LastUsetime to a date object
   Where only accounts lastusetime is Less Or Equal to $DaysFilterAccounts
#>
     $CheckLastUseTime = Get-CimInstance -Filter "Special=False AND Loaded=False" -ClassName Win32_UserProfile | 
     Select-Object @{Name="LastUseTime";Expression={Get-Date $_.Lastusetime -Format "yyyyMMdd" } } | 
     Where-Object { $_.LastUseTime -Le $DaysFilterAccounts } 

<# Create a String for Lastusetime #>
     $AccountLastUseTime = $CheckLastUseTime.Lastusetime 

<# 
   ForEach-Object In $GetProfiles If .LastUsetime is Less Or Equal to $DaysFilterAccounts
   Then Get the UserProfile Data And 
   Remove Profiledata 
#>

   If ( $AccountLastUseTime -Le $DaysFilterAccounts ) 
   {  
      $RemoveTheseAccounts = Get-CimInstance -Filter "Special=False AND Loaded=False" -ClassName Win32_UserProfile | 
      Select-Object Sid, Localpath, @{Name="LastUseTime";Expression={Get-Date $_.Lastusetime -Format "yyyyMMdd" }} |
      Where-Object { $_.LastUseTime -Le $DaysFilterAccounts } 

      Remove-CimInstance -InputObject $RemoveTheseAccounts



} Else {   Write-Warning -Message "Error"    }

错误消息：

Remove-CimInstance : Cannot convert 'System.Object[]' to the type 'Microsoft.Management.Infrastructure.CimInstance' 
required by parameter 'InputObject'. Specified method is not supported.
At C:\Users\fardin.TEST\Desktop\Rolf v 3.ps1:52 char:39
+       Remove-CimInstance -InputObject $RemoveTheseAccounts
+                                       ~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Remove-CimInstance], ParameterBindingException
    + FullyQualifiedErrorId : CannotConvertArgument,Microsoft.Management.Infrastructure.CimCmdlets.RemoveCimInstanceCommand

解决方案：

<# Change Value to remove account after a certain days #>
$DaysFilterAccounts = (get-date (Get-Date).AddDays(-180) -UFormat "%Y%m%d") 

<# $CheckLastUseTime
   Get all UserProfiles, Filter Service and Admin-accounts
   Select and convert LastUsetime to a date object
   Where only accounts lastusetime is Less Or Equal to $DaysFilterAccounts
#>
$CheckLastUseTime = Get-CimInstance -Filter "Special=False AND Loaded=False" -ClassName Win32_UserProfile | 
Select-Object @{Name="LastUseTime";Expression={Get-Date $_.Lastusetime -Format "yyyyMMdd" } } | 
Where-Object { $_.LastUseTime -Le $DaysFilterAccounts } 

<#  Create a String for Lastusetime #>
$AccountLastUseTime = $CheckLastUseTime.Lastusetime

<# 
   ForEach-Object In $GetProfiles If .LastUsetime is Less Or Equal to $DaysFilterAccounts
   Then Get the UserProfile Data And 
   Remove Profiledata 
#>
   If ( $AccountLastUseTime -Le $DaysFilterAccounts ) 
   {  

        # Remove Profiles
        $GetUserProfileData = Get-WmiObject -Class Win32_UserProfile -Filter "Special=False AND Loaded=False" | 
        Where { $_.LastUseTime -Le $DaysFilterAccounts }                 
        $GetUserProfileData  | Remove-WmiObject 


} Else {   Write-Warning -Message "Error"    }

Answer 1

在此处进行一些解释，教一个人钓鱼等。按照约定：InputObject属性是指管道中的当前属性，通常意味着您应该将该对象管道化。运行Get-Help Remove-CimInstance -Parameter InputObject会向您显示错误的原因：

-InputObject <CimInstance>
    Specifies a CIM instance object to be removed from the CIM server. 

    Note: The input object passed to the cmdlet is not changed, only the instance in the CIM server is removed.

    Required?                    true
    Position?                    1
    Default value                none
    Accept pipeline input?       True (ByValue)
    Accept wildcard characters?  false

从帮助文档中，您可以看到InputObject接受类型为 CimInstance 的单个对象，因此为它提供了一个 CimInstance [] 数组>无效。您还可以看到它接受管道输入。这给您两个选择。您可以在foreach块中循环浏览对象（不推荐），也可以将对象通过管道传递到函数中。这将为数组中的每个项目调用Remove-CimInstance上的process块；为每个条目传递 CimInstance 类型的对象。

正如Mathias所说，以下应解决此问题：

$RemoveTheseAccounts | Remove-CimInstance

有关过程块（以及开始和结束块）的更多信息，可以在这里找到：https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_functions_advanced_methods?view=powershell-6#process

无法将“ System.Object []”转换为参数“ InputObject”所需的类型“ Microsoft.Management.Infrastructure.CimInstance”

1 个答案: