How to restore for all documents in a library to one version older? Maybe powershell?

Question

I am using sp 2010. I have a document library. I would like to go to one previous version of all the documents in this document library. Maybe in powershell? Something like a foreach loop and for each document go to the previous version?

Answer 1

$web = Get-SPWeb -Identity http://sp2010
$list = $web.Lists["Documents"]
$items = $list.Items
foreach ($item in $items)
{
    $file = $item.File
    $fileVersions = $file.Versions      
    if ($fileVersions.Count -gt 0)
    {           
        $fileVersions.Restore($fileVersions.Count - 1)          
    }   
}

UPDATE

Please note that when any of previous versions is restored a new version is created.