C H A P T E R 4 Using The Command-Line Interface; Getting Help; Abbreviating Commands; Using No And Default Forms Of Commands - Cisco CISCO1401 - 1401 Router - EN Software Manual

Chapter 4 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 4-2 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 bridge to recognize the command as unique. This
example shows how to enter the show configuration privileged EXEC command:
BR# 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-4059-01
Table 4-2.
Purpose
Obtains a brief description of the help system in any command mode.
Obtains a list of commands that begin with a particular character string.
For example:
BR# di?
dir disable disconnect
Completes a partial command name.
For example:
BR# sh conf<tab>
BR# show configuration
Lists all commands available for a particular command mode.
For example:
BR> ?
Lists the associated keywords for a command.
For example:
BR> show ?
Lists the associated arguments for a keyword.
For example:
BR(config)# cdp holdtime ?
<10-255> Length of time (in sec) that receiver must keep this packet
Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide
Getting Help
4-3