REname all lists

gistfile1.txt

 $site = Get-SPSite http://siteColl    
    $site | Get-SPWeb -Limit ALL | ForEach-Object {   
        foreach ($list in $_.lists) 
        {                  
                    $list["Title"] = "NewTitle"
                    $list.Update()
        }
    }

    $site.Dispose()