Delete the specified file version using SharePoint 2010 web service in powershell

 
## Delete the specified file version using SharePoint 2010 web service in powershell
$uri="http://serverName:10736/sites/ECT/_vti_bin/Versions.asmx?wsdl" 
## $fileName is the string that contains the site-relative URL of the file 
[String]$fileName="Shared Documents/test.docx"
## $fileVersion is the string that contains the version that has to be deleted
[String]$fileVersion="2"


## Web Service Reference - http://Site/_vti_bin/Versions.asmx
$versionsWebServiceReference = New-WebServiceProxy -Uri $uri -UseDefaultCredential 
[System.Xml.XmlNode]$xmlNode=$versionsWebServiceReference.DeleteVersion($fileName,$fileVersion)

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