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How to remove a node from web.config file of a web application (PowerShell)

Introduction

The goal of this script is to remove a node from web.config file of a web application.

Scenarios

The script will help to remove a node in web.config file of a web application in SharePoint.

Script

Step 1: Run PowerShell with administrator.

Step 2: Drag the script to PowerShell console and input arguments as the following.

Note:

1. The argument Path is case-sensitive.

2.The argument Path format should like //Rootnode/childnode[@attribute = 'value']/ ,for example:

Path: "//configuration/configSections/sectionGroup[@name = 'SharePoint']/section[@name = 'WebPartLimits']"

Content in web.config:

Here are some code snippets for your references:

PowerShell
Edit|Remove
powershell
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
$web = Get-SPWebApplication -Identity $Webapplication
$zone = $web.AlternateUrls[0].UrlZone
$iissetting = $web.IisSettings[$zone]
$webPath = $iissetting.Path.ToString() + "\web.config"
$webcontent = [XML](Get-Content -Path $webPath)
$node = $Webcontent.SelectSingleNode($path)
If($node)
{
    try
    {
        $node.Removeall()
        $date = Get-Date -Format o
        $datetime = $date.Substring(0,$date.IndexOf("."))
        $backtime = ($datetime -replace "-","") -replace ":",""
        $destination = $iissetting.Path.ToString() + "\web"+$backtime+"backup.config" 
        Copy-Item -Path $webpath -Destination  $destination
        write-host "Backup web.config to $destination" -ForegroundColor Green
        $webcontent.save($webpath)
        write-host "Remove node '$path' from web.config of $webapplication successfully!" -ForegroundColor Green
    }
    catch
    {
        Write-Error $_
    }
}
Else
{
    Write-Warning "The specified path is not found,please try again(Path is case-sensitive)."
}

Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue 
$web = Get-SPWebApplication -Identity $Webapplication 
$zone = $web.AlternateUrls[0].UrlZone 
$iissetting = $web.IisSettings[$zone] 
$webPath = $iissetting.Path.ToString() + "\web.config" 
$webcontent = [XML](Get-Content -Path $webPath) 
$node = $Webcontent.SelectSingleNode($path) 
If($node) 
{ 
    try 
    { 
        $node.Removeall() 
        $date = Get-Date -Format o 
        $datetime = $date.Substring(0,$date.IndexOf(".")) 
        $backtime = ($datetime -replace "-","") -replace ":","" 
        $destination = $iissetting.Path.ToString() + "\web"+$backtime+"backup.config"  
        Copy-Item -Path $webpath -Destination  $destination 
        write-host "Backup web.config to $destination" -ForegroundColor Green 
        $webcontent.save($webpath) 
        write-host "Remove node '$path' from web.config of $webapplication successfully!" -ForegroundColor Green 
    } 
    catch 
    { 
        Write-Error $_ 
    } 
} 
Else 
{ 
    Write-Warning "The specified path is not found,please try again(Path is case-sensitive)." 
}



 

Prerequisite

Windows Server 2008R2 or higher version

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