This command will give your character the perk with the specified ID.
player.addperk [perk id]
|Perk ID||The ID of the perk you wish to give to your character.|
The above command would give your player the perk with ID 00065e42, which is Iron Fist 4. You can find a list of all perk IDs on our perk ID list.
This example is similar to the first, but instead of adding Iron Fist 4 as a perk, it adds the perk with ID 000b9883, which is Sneak 3.