Learn about Windows PowerShell
Summary: Use Windows PowerShell to easily find the grandparent of a path.
How can I use Windows PowerShell to find a directory that is two levels up in a nested path?
Use the Split-Path cmdlet and pipe the results to Split-Path. In the following example, the path to a Windows PowerShell module is split, and then the parent of that path is split again:
(get-module -l).Path | split-path -Parent | Split-Path -Parent
I see that one can add 'split-path -parent' as many times as necessary until you reach the root. I'll have to think of a way to determine how many levels exist in a path (search for the number of backslashes?), and then repeat 'split-path -parent' 'x' number of times until you've reached root.