Juniper JUNOSE 11.3, Configuration Manual

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CHAPTER 2
Command-Line Interface
This chapter provides information about the E Series router command-line interface
(CLI).
This chapter contains the following sections:
•
Overview on page 27
• Platform Considerations on page 45
• Accessing the CLI on page 45
•
CLI Command Privileges on page 49
•
Using Help on page 60
• Using Command-Line Editing on page 63
• Accessing Command Modes on page 66
Overview
The 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,
which automatically starts after the router finishes booting, provides commands that
you use to perform various tasks, including configuring the JunosE Software and monitoring
and troubleshooting the software, network connectivity, and the router hardware.
Managing your router using the CLI gives you access to thousands of commands. The
router’s CLI uses an industry
de facto standard look and feel, which might be familiar to
you. If you are new to this CLI, it is helpful to read this entire chapter, where you can learn
about CLI shortcuts and other helpful information.
Command Modes
Command modes set a context for the CLI. Each command in the CLI is available from
one or more command modes. From some command modes you can only view router
information; from others you can perform configuration tasks. For example, you can
access User Exec mode to display information and then access Global Configuration
mode to set parameters or enable a particular feature. By recognizing the command-line
prompt, you can identify where you are in the CLI at any given point. When you can easily
identify where you are, it is easy to get to where you want to be.
27 Copyright © 2010, Juniper Networks, Inc.