CLI Overview

The JUNOS CLI uses industry-standard tools and utilities to provide a set of commands for monitoring and configuring a routing platform. You type commands on a line and press Enter to execute them. The CLI provides command help, command completion, and Emacs-style keyboard sequences for moving around on the command line and scrolling through a buffer of recently executed commands.

The commands in the CLI are organized hierarchically, with commands that perform a similar function grouped together under the same level. For example, all commands that display information about the device system and system software are grouped under the show command, and all commands that display information about the routing table are grouped under the show route command. The hierarchical organization results in commands that have a regular syntax and provides the following features that simplify CLI use:

The CLI has two modes:

For more information about the JUNOS CLI, see the Junos OS CLI User Guide.