How to identify which is rootsite/webapplication url and which are site collection url ?

Question

How to identify which is rootsite/webapplication url and which are site collection url underneath of web application using powershell script in following code?
# Get site objects
$webapplication = Get-SPWebApplication $siteUrl
# Walk through each site in the site collection
foreach($site in $webapplication.Sites)
foreach($subWeb in $site.AllWebs)
$_ = AddLevel123($subWeb.Url)

Answer 1

Hi,
Hope you wanted to know which API is Site collection (SPSite) and Sub site(SPWeb) 
$webapplication.Sites = Site Collection (SPSite)
and $site.AllWebs = Subsite (SPWeb)
and see these links - to get webApplication URL
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/e223b607-ab35-454a-a050-1db3005687e5/spwebapplication-url?forum=sharepointdevelopmentlegacy
SPSite Url - SPSite.Url (http://msdn.microsoft.com/en-us/library/office/microsoft.sharepoint.spsite.url.aspx)
SPweb URl - SPWeb.URL (http://msdn.microsoft.com/en-us/library/office/microsoft.sharepoint.spweb.url.aspx)
http://social.technet.microsoft.com/Forums/sharepoint/en-US/b4dfb645-69f4-4abd-947c-64ca42af3a26/script-to-get-list-of-sites-and-subsites
Hope this helps!
MCITP: SharePoint 2010 Administrator
MCTS - MOSS 2007 Configuring, .NET 2.0
| SharePoint Architect | Evangelist |
http://www.sharepointdeveloper.in/
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