This post is part of the series on PowerShell Snippets.
The following PowerShell command will export a list of folders and sub-folders from the specified location (the first highlighted section is the starting folder and the second the output path for the CS file):
Get-ChildItem -Path \\nas3\public\movies -Recurse -Directory -ErrorAction SilentlyContinue | Select-Object FullName | Export-CSV c:\temp\export.txt
Read original post PowerShell Snippets: Output list of folders and sub-folders at azurecurve|Ramblings of a Dynamics GP Consultant