The following script samples address administrative tasks:

• Backing up an Individual GPO


• Backing up the GPOs in a Domain


• Creating a Copy of a GPO


• Creating a New GPO


• Creating a Policy Environment Using an XML File


• Creating an XML File that Represents a Policy Environment


• Create Migration Table


• Deleting a GPO


• Grant Permissions for all GPOs in a Domain


• Importing a GPO


• Importing Multiple GPOs into a Domain


• Restoring a GPO


• Restoring All GPOs in a Domain


• Setting GPO Permissions


• Setting Permissions for all GPOs Linked to a Scope of Management


• Setting Permissions to Create GPOs


• Setting Policy-related Permissions on a SOM

There are also script samples that perform the following queries:

• Listing All GPOs in a Domain


• Listing Disabled GPOs


• Listing GPO Information


• Listing GPOs at a Backup Location


• Listing GPOs by Policy Extension


• Listing GPOs by Security Group


• Listing GPOs Orphaned in SYSVOL


• Listing GPOs With Duplicate Names


• Listing GPOs Without Security Filtering


• Listing SOM Information


• Listing SOMs With Links to GPOs in External Domains


• Listing Unlinked GPOs in a Domain


• Printing the SOM Policy Tree


• Generate Reports for all GPOs


• Generate Reports for a GPO

https://msdn.microsoft.com/en-us/library/aa814151(v=vs.85).aspx