If you login to Unity by telnet or modem, the command line is your only interface to Unity. If you log in from a UNIX-based workstation running an X Window System, you can access Unity with numerous windows with which to run applications. There is no name or machine name unless you alter the way the system displays the prompt. Argument is usually the file or directory upon which the command operates. The command name is always the first thing you type at the command line.
Options follow the command, and arguments follow the options.
Not all commands allow or require you to specify options or arguments, and not all commands are available to all users. Go back to Entering commands . Go back to the tutor page .