Deleting Inaccessible SharePoint 2010 Lists or Libraries using PowerShell

Some times it happens so that there's a custom list out there in your SharePoint 2007 environment, but for some reason you don't have the definition of the list with which the list / library was created. This will create a situation wherein you won't be able to access these lists after you migrate them to SharePoint 2010, because their definitions aren't available in the SharePoint 2010 environment. In situations like this, you will not be able to access the list and would probably want to get rid of them from the system. If that sounds something that you've been into, then read on...

Add / Remove Site Collection Administrator to All Site Collections

One fine morning, your boss could walk up to you and say that he wants a particular user to be added to all the site collections in a web application or could go one step further and say that this user needs to be added as a site collection administrator to all the site collections across all the web applications in a farm. You might think that....it shouldn't be all that difficult. There are just a handful of site collections in my web application. But well my situation was that there were not a handful but a few hundred handful of those. In fact about 700 of them in just one web application.