I've recently started messing around with PowerShell and Server Core in preparation for the Server 2012 R2 exams. With the exception of Cisco IOS, I haven't really used the command line except for running
ipconfig for a longtime and based off of Microsoft's objectives for the Server 2012 R2 exams it seems that they're trying to force a paradigm shift away from the GUI and toward command line administration of servers. I'll post PowerShell tips and tricks as I figure them out.
From the command prompt type
Powershell
to enter a PowerShell session.
After PowerShell launches, type
Start-Process PowerShell -Verb RunAs
and it will bring up a PowerShell prompt in Administrator mode.