About the Command-Line Interface
The command-line interface (CLI) is the interface to the software that you use whenever you access the router—whether from the console or through a remote network connection. The CLI provides commands to configure, monitor, and troubleshoot software, network connectivity, and router hardware. You type commands on a single line, and the commands are executed when you press the Enter key. The CLI provides command help, command completion, and Emacs-style keyboard sequences that allow you to move around on a command line and scroll through a buffer that contains recently-executed commands. The CLI has two modes: operational and configuration. This chapter discusses the operational mode CLI. In operational mode, the CLI is indicated by the presence of the > prompt, which is preceded by a string that defaults to the name of the user and the name of the router. For example:
user@host>
This chapter includes the following sections:
- CLI Hierarchy
- Getting Help with Commands
- Getting a CLI Help Tip
- Having the CLI Complete Commands
- Specifying Filenames and URLs
- Understanding CLI Messages
- Moving Around and Editing the Command Line
- Displaying Output One Screen at a Time
- Filtering Operational Mode Command Output
- Routing Matrix CLI Specifics
