Sorting powershell将管道输入发送到管道

我有一个接受管道参数的脚本。 我不能确定用户在管道传输到我的脚本之前已经通过Sort对象管道传输了他们的输入，所以我想在我开始在脚本中对其进行操作之前，将管道传输的输入发送出去进行排序（和其他处理）

该脚本具有以下参数：

$script:creds
$script:confObj
function Get-ConfigureServerInput
{
<#
#>

[CmdletBinding(DefaultParameterSetName = "FromPipe")]

Param(
    [Parameter(ParameterSetName="FromUser", Mandatory=$true, Position=0)] [string[]]$ComputerName,
    [Parameter(ParameterSetName="FromUser", Mandatory=$true, Position=1)] [string[]]$AppName,
    [Parameter(ParameterSetName="FromUser", Mandatory=$true, Position=2)] [string[]]$key,
    [Parameter(ParameterSetName="FromUser", Mandatory=$true, Position=3)] [string[]]$setting,

    [Parameter(ParameterSetName="FromPipe", Mandatory=$true, ValueFromPipeline=$true)] [PSObject]$pobj,

    [Parameter(ParameterSetName="FromFile", Mandatory=$true)] [string]$File,

    [Parameter()] [switch]$force,
    [Parameter()] [switch]$mt,
    [Parameter()] [int]$MaxThreads = 0,
    [Parameter()] [System.Management.Automation.PSCredential]$Credentials
)

BEGIN
{
    #Runs once regardless of how many items are in the pipe
    If ($Credentials -ne $null) {$script:creds = $Credentials}

    Switch ($PSCmdlet.ParameterSetName)
    {
        "FromPipe" 
        {
            Write-Verbose "Input is from pipe"
            $script:confObj = $($pobj)
            break
        }
        "FromUser"
        {
            Write-Verbose "Input is from user arguments"
            $uObj = New-Object PSObject
            $uObj | Add-Member -type NoteProperty -name ComputerName -value $ComputerName
            $uObj | Add-Member -type NoteProperty -name AppName -value $AppName
            $uObj | Add-Member -type NoteProperty -name key -value $key
            $uObj | Add-Member -type NoteProperty -name setting -value $setting
            $script:confObj = $uObj
            break
        }
        "FromFile"
        {
            Write-Verbose "Input is from file"
            Write-Verbose "Import-CSV -Header 'ComputerName','AppName','key','setting' -path $File "
            $script:confObj = Import-CSV -Header "ComputerName","AppName","key","setting" -path $File 
            break
        }
    }
    $script:confObj
}

但是在BEGIN块中似乎没有$input变量。如果我在BEGIN块中放入$input | Get成员，我会得到错误：

Get-Member : No object has been specified to the get-member cmdlet.
At E:\Powershell\ConfigureServer\ConfigureServer.psm1:53 char:22
+         $input | Get-Member <<<<
    + CategoryInfo          : CloseError: (:) [Get-Member], InvalidOperationException
    + FullyQualifiedErrorId : NoObjectInGetMember,Microsoft.PowerShell.Commands.GetMemberCommand

这里显示的是让成员看到我得到了一个对象

   TypeName: System.Management.Automation.PSCustomObject

Name         MemberType   Definition
----         ----------   ----------
Equals       Method       bool Equals(System.Object obj)
GetHashCode  Method       int GetHashCode()
GetType      Method       type GetType()
ToString     Method       string ToString()
AppName      NoteProperty System.String AppName=garbage
ComputerName NoteProperty System.String ComputerName=google.com
key          NoteProperty System.String key=trash
setting      NoteProperty System.String setting=null

使用-File或-ComputerName（以及其他必需的参数）调用它会生成我所期望的对象。e、 g:

PS E:\Powershell\ConfigureServer> Get-ConfigureServerInput -Verbose -File duplicates.dat
VERBOSE: Input is from file
VERBOSE: Import-CSV -Header 'ComputerName','AppName','key','setting' -path duplicates.dat

ComputerName                  AppName                       key                           setting
------------                  -------                       ---                           -------
google.com                    garbage                       trash                         null
alpha                         nonsense                      nilhilist                     nil
yahoo.com                     aname                         akey                          avalue
alpha                         nonsense                      nilhilist                     nil
yahoo.com                     aname                         akey                          avalue

---

使用管道输入调用不会返回任何输出。

必须使用已声明的参数：

$ComputerName

，

$AppName

，

$key

，

$setting

---

您可能可以使用

addmember

重新构造与原始对象类似的对象，然后对它们进行排序。

为了使这更通用，我真正想做的是在处理process块中的单个元素（foreach）之前，在BEGIN块中预处理整个管道。我想对管道进行排序并删除重复项。

   TypeName: System.Management.Automation.PSCustomObject

Name         MemberType   Definition
----         ----------   ----------
Equals       Method       bool Equals(System.Object obj)
GetHashCode  Method       int GetHashCode()
GetType      Method       type GetType()
ToString     Method       string ToString()
AppName      NoteProperty System.String AppName=garbage
ComputerName NoteProperty System.String ComputerName=google.com
key          NoteProperty System.String key=trash
setting      NoteProperty System.String setting=null

PS E:\Powershell\ConfigureServer> Get-ConfigureServerInput -Verbose -File duplicates.dat
VERBOSE: Input is from file
VERBOSE: Import-CSV -Header 'ComputerName','AppName','key','setting' -path duplicates.dat

ComputerName                  AppName                       key                           setting
------------                  -------                       ---                           -------
google.com                    garbage                       trash                         null
alpha                         nonsense                      nilhilist                     nil
yahoo.com                     aname                         akey                          avalue
alpha                         nonsense                      nilhilist                     nil
yahoo.com                     aname                         akey                          avalue