Get the user group information using SharePoint 2010 web service in powershell

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Steps Involved:

Open SharePoint 2010 Management Shell by going to Start | All Programs | SharePoint | Microsoft SharePoint 2010 Products | SharePoint 2010 Management Shell (Run as Administrator).
Run the following script.

Powershell Script:

 
## Get the user group information using SharePoint 2010 web service in powershell
$uri="http://serverName:10736/sites/ECT/_vti_bin/UserGroup.asmx?wsdl" 
## $groupName is the string that contains the group name for which the information has to be returned
[String]$groupName="TestGroup1" 

## Web Service Reference - http://Site/_vti_bin/UserGroup.asmx
$usergroupWebServiceReference = New-WebServiceProxy -Uri $uri -UseDefaultCredential 
[System.Xml.XmlNode]$xmlNode=$usergroupWebServiceReference.GetGroupInfo($groupName)

## Creates an GroupInfo.xml file in the D:\ which contains the information about the specific group
$output = New-Object -TypeName System.IO.StreamWriter -ArgumentList "D:\GroupInfo.xml", $false
$output.WriteLine("<?xml version=""1.0"" encoding=""utf-8"" ?>")
$output.WriteLine($xmlNode.OuterXml)
$output.WriteLine() 
$output.Dispose()