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CHAPTER

1-1

Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.5(0)XO

OL_28738-01

Command-Line Interface

This chapter provides information for understanding and using the Cisco IOS command-line interface

(CLI) on the Catalyst 4500 series switch. This chapter in cludes the following sections:

• Getting Help, page 1-1

• How to Find Command Options, page 1-2

• Understanding Command Modes, page 1-5

• Using the No and Default Forms of Commands, page 1-6

• Using the CLI String Search, page 1-6

• Saving Configuration Changes, page 1-11

For an overview of the Catalyst 4500 series switch Cisco IOS configuration, refer to the Catalyst 4500

Series Switch Cisco IOS Software Configuration Guide.

Getting Help

To display a list of commands that you can use within a command mode, enter a question mark (?) at

the sy stem prompt. You also can display keywords and arguments for each command with this

context-sensitive help feature.

Table 1-1 lists commands you can enter to get help that is specific to a command mode, a command, a

keyword, or an argument.

Table 1-1 Getting Help

Co mma nd Pu rpos e

abbreviated-command-entry? Displays a list of commands that begin with a

particular character string. (Do not leave a space

between the command and question mark.)

abbreviated-command-entry<Tab > Completes a partial command name.

? Lists all commands for the command mode.

command ? Lists all keywords for the command. Leave a space

between the command and the question mark.

command ke yword ? Lists all arguments for the keyword. Leave a space

between the keyword and the question mark.

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