Name: Cisco XR 12000 Series
Brand: Cisco
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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router

OL-24755-01

Chapter 5 CLI Tips, Techniques, and Shortcuts

CLI Tips and Shortcuts

Using the Question Mark (?) to Display On-Screen Command Help

Use the question mark (?) to learn what commands are available and the correct syntax for a command.

Table 5-1 summarizes the options for on-screen help.

Tip The space (or no space) before the question mark (?) is significant. If you include a space before the

question mark, the system displays all available options for a command or CLI mode. If you do not

include a space, the system displays a list of commands that begin with a particular character string.

Table 5-1 On-Screen Help Commands

Command Description

partial-command ? Enter a question mark (?) at the end of a partial command to list the commands that begin with those

characters.

RP/0/0/CPU0:router# co?

configure copy

Note Do not include a space between the command and question mark.

? Lists all commands available for a particular command mode.

command ? Include a space before the question mark (?) to list the keywords and arguments that belong to a

command.

RP/0/0/CPU0:router# configure ?

exclusive Configure exclusively from this terminal

terminal Configure from the terminal

<cr>

Note For most commands, the <cr> symbol indicates that you can execute the command with the

syntax already entered. For the preceding example, press Return to enter global configuration

mode.

command keyword ? Enter a question mark (?) after the keyword to list the next available syntax option for the command.

RP/0/0/CPU0:router# show aaa ?

ikegroup Show local IKE group(s)

locald locald sub system

task Show task information

taskgroup Show all the local taskgroups configured in the system

trace Show trace data for AAA sub system

userdb Show all local users with the usergroups each belong to

usergroup Show all the local usergroups configured in the system

Note Include a space between the keyword and question mark.

Cisco XR 12000 Series Getting Started Guide

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