Getting Help; Abbreviating Commands; Using No And Default Forms Of Commands - Cisco AIR-AP1121G-E-K9 Hardware Installation Manual

Chapter 5 Using the Command-Line Interface

Getting Help

You can enter a question mark (?) at the system prompt to display a list of commands available for each
command mode. You can also obtain a list of associated keywords and arguments for any command, as
shown in
Table 5-2 Help Summary
Command
help
abbreviated-command-entry?
abbreviated-command-entry<Tab>
?
command ?
command keyword ?

Abbreviating Commands

You have to enter only enough characters for the access point to recognize the command as unique. This
example shows how to enter the show configuration privileged EXEC command:
ap# show conf

Using no and default Forms of Commands

Most configuration commands also have a no form. In general, use the no form to disable a feature or
function or reverse the action of a command. For example, the no shutdown interface configuration
command reverses the shutdown of an interface. Use the command without the keyword no to re-enable
a disabled feature or to enable a feature that is disabled by default.
OL-4309-02
Table 5-2.
Purpose
Obtain a brief description of the help system in any command mode.
Obtain a list of commands that begin with a particular character string.
For example:
ap# di?
dir disable disconnect
Complete a partial command name.
For example:
ap# sh conf<tab>
ap# show configuration
List all commands available for a particular command mode.
For example:
ap> ?
List the associated keywords for a command.
For example:
ap> show ?
List the associated arguments for a keyword.
For example:
ap(config)# cdp holdtime ?
<10-255> Length of time (in sec) that receiver must keep this packet
Cisco Aironet 1100 Series Access Point Hardware Installation Guide

Getting Help

5-3