In my previous article about upgrading from SharePoint 2010 to SharePoint 2013, I explained how to complete this task by using the Database Attach upgrade method. This technique implies the necessity to use some PowerShell cmdlets available in SharePoint 2013 to work with either content databases or service applications ones.
As you know, SharePoint is not only a product but also a development platform. Being a platform you can extend it. You do this by creating custom elements at any level using a rich object model. For instance, you can create custom SharePoint 2013 cmdlets to add extra functionalities and capacities to the existing ones. In this article, I will show you how to create a custom cmdlet that allows you to extract Central SharePoint solutions from the solution catalog in an existing SharePoint 2013 farm.