If executed without a command as an argument, a list of all commands will be printed to the console. If executed with a command as an argument, help for that command will be printed to console.
|Command||Optional. The name of the command you wish to receive help information for. If not specified, a list of commands will be printed.|
This command would print a list of all commands in EU4 to the console.
The above command would print help information for the add_core command.