Use Windows PowerShell to export a site, list, or document library to SharePoint Server
Windows PowerShell , script, .
, Windows PowerShell
Verify that you meet the following minimum requirements: See Add-SPShellAdmin.
On the Start menu, click All Programs.
Click Microsoft SharePoint 2010 Products.
Click SharePoint 2010 Management Shell.
At the Windows PowerShell command prompt, type the following command: