Administrator Guide

CLI Basics

This chapter describes the command line interface (CLI) structure and command modes. The Dell EMC Networking operating software

commands are in a text-based interface that allows you to use the launch commands, change command modes, and configure interfaces

and protocols.

Topics:

• Accessing the Command Line

• Multiple Configuration Users

• Obtaining Help

• Navigating the CLI

• Using the no Command

• Filtering show Commands

• Enabling Software Features on Devices Using a Command Option

• Command Modes

Accessing the Command Line

Access the CLI through a serial console port or a Telnet session.

When the system successfully boots, enter the command line in EXEC mode.

NOTE:

You must have a password configured on a virtual terminal line before you can Telnet into the system. Therefore,

you must use a console connection when connecting to the system for the first time.

Example

telnet 172.31.1.53

Trying 172.31.1.53...

Connected to 172.31.1.53.

Escape character is '^]'.

Password: DellEMC>

After you log in to the switch, the prompt provides you with the current command-level information. For example:

Prompt

CLI Command Mode

DellEMC>

EXEC

DellEMC#

EXEC Privilege

DellEMC(conf)#

CONFIGURATION

NOTE: For a list of all the command mode prompts, refer to the Command Modes section.

Multiple Configuration Users

When a user enters CONFIGURATION mode and another user is already in CONFIGURATION mode, the Dell EMC Networking operating

software generates an alert warning message similar to the following:

DellEMC#conf

% Warning: The following users are currently configuring the system:

User "" on line console0

User "admin" on line vty0 ( 123.12.1.123 )

User "admin" on line vty1 ( 123.12.1.123 )

CLI Basics 41