Prompt – The area in the command-line interface (CLI) window where users type commands. It appears after any output in the CLI window, and the command is executed by pressing the Enter key.
Command – A single instruction given to the router, entered as the first word at the command prompt.
Argument – The text that follows the command, often used to modify how the command operates. Arguments are typically optional and can be discovered by running the command with the --help argument or by typing "help" followed by the command name.