How to tell where a masterpage is used in a site collection?

Question

Is there a way, within a site collection, to see all the pages that use a particular masterpage?

I have several masterpages and can't remember which ones are used where.

Answer 1

One option would be to use powershell to iterate through the site collection. Something along the lines of this:

$site = Get-SPSite "http://site.domain.com"
$webs = $site.AllWebs

$webs | % { 
    $obj = new-object System.Object
    $obj | Add-Member -type NoteProperty -name WebUrl -value $_.Url
    $obj | Add-Member -type NoteProperty -name Master -value $_.MasterUrl
    $obj | Add-Member -type NoteProperty -name CustomMaster -value $_.CustomMasterUrl
    $obj
} | Export-CSV -NoTypeInformation -Path "C:\folder\MasterPages.csv"