用于删除XML元素的PowerShell脚本

Question

I have an XML doccument that looks like this: 我有一个XML文档，如下所示：

<Task>
    <Settings>
    </Settings>
    <Sub>foo</Sub>
    <Body>bar</Body>
</Task>

From PowerShell I can happily get the contents of 'Sub' and 'Body' using: 从PowerShell我可以愉快地使用以下内容获取'Sub'和'Body'的内容：

$Body = $XMLFile.Task.Body

But I am trying to REMOVE the 'Sub' and 'Body' Tags completely so the XML would be: 但我试图完全删除'Sub'和'Body'标签，因此XML将是：

<Task>
    <Settings>
    </Settings>
</Task>

I have already Tried many things, Including: 我已经尝试了很多东西，包括：

Using the .RemoveChild() method (Threw an exeption relating to Object reference) 使用.RemoveChild()方法（ .RemoveChild()与Object引用相关的exeption）
Removing with an XPath Statement and adding a Pipe to remove in one line 使用XPath语句删除并添加管道以在一行中删除
Even opening the file as a text file and trying: 甚至将文件作为文本文件打开并尝试：
Get-Content $_.FullName -notmatch "<Sub>" | out-file $_.FullName

^^ This does nothing at all ^^这什么都不做

Also for this application of script I would be unable to use any third party modules 此外，对于此脚本应用程序，我将无法使用任何第三方模块

Answer 1

You can use Where-Object to find the Child nodes you want to remove and then call RemoveChild() : 您可以使用Where-Object查找要删除的子节点，然后调用RemoveChild() ：

$Input = "C:\path\task.xml"
$Output = "C:\path\newtask.xml"

# Load the existing document
$Doc = [xml](Get-Content $Input)

# Specify tag names to delete and then find them
$DeleteNames = "Sub","Body"
($Doc.Task.ChildNodes |Where-Object { $DeleteNames -contains $_.Name }) | ForEach-Object {
    # Remove each node from its parent
    [void]$_.ParentNode.RemoveChild($_)
}

# Save the modified document
$Doc.Save($Output)

用于删除XML元素的PowerShell脚本

问题描述

1 个解决方案

解决方案1
6 已采纳 2015-07-17 15:16:32

用于删除XML元素的PowerShell脚本

问题描述

1 个解决方案

解决方案1 6 已采纳 2015-07-17 15:16:32

解决方案1
6 已采纳 2015-07-17 15:16:32