Automatically download versions of a file in SharePoint to your computer

Requirement

Download all versions of a file in SharePoint to a local folder on your computer.

Solution

Use the PowerShell script below to do this. You can run this script as a normal user as long as you have access to the GetVersions webservice method.

Usage: Run the script in PowerShell or PowerShell ISE.

Parameters:

Site URL: for e.g. http://www.google.com

File URL: for e.g. http://www.google.com/testfile.docx

Path to local folder: for e.g. c:\download\

# Download all versions of a file to a local folder.
# Instructions: Specify the URL of the file you wish to download.
# Last Updated: 12-06-2014.
# By: Andrew Toh
 
$scriptpath = $MyInvocation.MyCommand.Path
$dir = Split-Path $scriptpath
 
# Get parameters
$site = Read-Host "Enter Site URL"
$file = Read-Host "Enter full URL to file, e.g. http://www.google.com/sample.docx"
$localdir = Read-Host "Enter path to local folder, e.g. c:\downloads"
$filename = $($file.split("([^/]+$)'")[-1])
$filedir = "$($localdir)\$($filename)"
 
#----------------------------------------------------- functions -----------------------------------------------------------
 
function GetVersions()
{
     param($site, $file)
     $uriWeb=$site+"/_vti_bin/Versions.asmx?wsdl" 
     $service = New-WebServiceProxy -Uri $uriWeb -UseDefaultCredential 
     [System.Xml.XmlNode]$webCollXmlNode=$service.GetVersions($file)
     $vers = $webCollXmlNode.result
     return $vers        
}
 
#--------------------------------------- Work with the data ------------------------------------------
 
$versions = GetVersions -site $site -file $file
mkdir -path $filedir
$webclient = New-Object System.Net.WebClient
$webclient.UseDefaultCredentials = $true
$webclient.DownloadFile($file, "$($filedir)\$($filename)")
 
# Download all versions of a file
foreach ($ver in $versions)
{
    $verpath = "$($filedir)\$($ver.version)"
    mkdir -path $verpath
    $webclient = New-Object System.Net.WebClient
    $webclient.UseDefaultCredentials = $true
    $webclient.DownloadFile($ver.url, "$($verpath)\$($filename)")
}

When the script has run, a folder will be created with all the downloaded versions of the file. Using the parameters in the example above, you will get a folder called:

c:\working\testfile.docx

Assuming there are 4 versions:

Folder contents:

c:\working\testfile.docx\@3.0\testfile.docx

c:\working\testfile.docx\2.0\testfile.docx

c:\working\testfile.docx\1.0\testfile.docx

c:\working\testfile.docx <- latest version (4.0).

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One Response to “Automatically download versions of a file in SharePoint to your computer”

  1. Rinaldo June 16, 2014 at 12:00 pm #

    Nice work

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