GPO Permission

Need help on how to deny gpo for a specific user in powershell using set-gppermission command?

Everything you need is right here

Thanks for the tip, but this help is not helping me. I want to deny a GPO only for one user in an OU. I can do this in GUI by clicking the advanced tab for that user and then select deny against apply GPO setting. I want to accomplish the same in PowerShell.

Looking at that link it looks like this is the parameter you want to be testing.

Specifies the permission level to set for the security principal. The valid permission levels are: GpoRead, GpoApply, GpoEdit, GpoEditDeleteModifySecurity or None.

Thanks for your time.