Some commands have 'arguments', these are extra numbers or words that you need to add to a command to tell it what to do, they are separated by spaces.

The prestige command will give your nation 55 prestige - to run this command, all you need to do is type prestige into the console and your country's prestige will increase by 55. After opening the console, all you need to do is type a command in and hit ENTER on your keyboard to run it.