Cli Features; Introduction To Cli; Online Help With Command Lines - 3Com 4500G Family Configuration Manual

2

CLI Features

This section covers the following topics:

Introduction to CLI

Online Help with Command Lines

Synchronous Information Output
Undo Form of a Command
Editing Features
CLI Display
Saving History Command
Command Line Error Information
Introduction to CLI
CLI is an interaction interface between devices and users. Through CLI, you can configure your devices
by entering commands and view the output information and verify your configurations, thus facilitating
your configuration and management of your devices.
CLI provides the following features for you to configure and manage your devices:
Hierarchical command protection where you can only execute the commands at your own or lower
levels. Refer to
Easy access to on-line help by entering "?"
Abundant debugging information for fault diagnosis
Saving and executing commands that have been executed
Fuzzy match for convenience of input. When you execute a command, you can input part of the
characters in a keyword. However, to enable you to confirm your operation, the command can be
executed only when you input enough characters to make the command unique. Take the
commands save, startup saved-configuration, and system-view which start with s as an
example. To save the current configuration, you need to input sa at least; to set the configuration
file for next startup, you need to input st s at least; to enter system view, you need to input sy at
least. You can press Tab to complement the command, or you can input the complete command.
Online Help with Command Lines
The following are the types of online help available with the CLI:
Full help
Fuzzy help
To obtain the desired help information, you can:
1) Enter ? in any view to access all the commands in this view and brief description about them as
well.
<Sysname> ?
User view commands:
backup
boot-loader
Configuring User Privilege Levels and Command Levels
Backup next startup-configuration file to TFTP server
Set boot loader
2-1
for details.