比较两个列表并使用powershell查找列表一中的名称而不是列表二的名称 [英] Compare two list and find names that are in list one and not list two using powershell

问题描述

只是想知道您是否可以帮助我.. 我正在尝试比较两个列表(txt 文件)并找到列表 A 中而不是列表 B 中的字符串并将其输出到另一个 txt 文件中.. 任何人都知道如何用 powershell 做吗?

Just wondering if you can help me out.. I am trying to compare two list(txt file) and find strings that are in list A and not in List B and output it to another txt file.. anybody know how to do it using powershell ?

这是我目前所拥有的:

Compare-Object -ReferenceObject $FolderLists -DifferenceObject $AdUserName -passThru

我想查找 $FolderLists 而不是 $AdUserName 中的所有字符串，并可能将其输出到另一个变量.我遇到的问题是它输出的字符串不在两个列表中.

I would like to find all strings that are in $FolderLists and not $AdUserName and possibly output it to another variable. The issue I am having is that it outputs strings that are not in both lists.

推荐答案

我假设 $FolderList 和 $AdUserName 是字符串数组?您真的不需要 Compare-Object 来比较数组.就这么简单:

I assume $FolderList and $AdUserName are arrays of strings? You don't really need Compare-Object to compare arrays. It's as simple as this:

$FolderList | ?{$AdUserName -notcontains $_}

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Compare-Object 用于将对象集合的指定属性与公共属性进行比较.如果您真的想要，可以使用 Compare-Object 执行此操作，如下所示:

Compare-Object is for comparing the specified properties of collections of objects with common properties. You could do this with Compare-Object if you really want, like this:

Compare-Object $FolderList $AdUserName | ?{$_.SideIndicator -eq '<='} | Select-Object -ExpandProperty InputObject

但正如您所见，这对这项任务来说太过分了.

But as you can see, it's overkill for this task.

要将结果输出到另一个变量，只需将其赋值:

To output the result to another variable, simply assign it:

$AnotherVariable = $FolderList | ?{$AdUserName -notcontains $_}

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