Name: Cisco ASR 1000
Brand: Cisco
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1-7

Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide

OL-14127-08

Chapter 1 Using Cisco IOS XE Software

Getting Help

Entering a question mark (?) at the CLI prompt displays a list of commands available for each command

mode. You can also get a list of keywords and arguments associated with any command by using the

context-sensitive help feature.

To get help specific to a command mode, a command, a keyword, or an argument, use one of the

following commands, shown in

Table 1-4:

Finding Command Options Example

This section provides an example of how to display syntax for a command. The syntax can consist of

optional or required keywords and arguments. To display keywords and arguments for a command, enter

a question mark (?) at the configuration prompt or after entering part of a command followed by a space.

The Cisco IOS XE software displays a list and brief description of available keywords and arguments.

For example, if you were in global configuration mode and wanted to see all the keywords or arguments

for the arap command, you would type arap ?.

The <cr> symbol in command help output stands for “carriage return.” On older keyboards, the carriage

return key is the Return key. On most modern keyboards, the carriage return key is the Enter key. The

<cr> symbol at the end of command help output indicates that you have the option to press Enter to

complete the command and that the arguments and keywords in the list preceding the <cr> symbol are

optional. The <cr> symbol by itself indicates that no more arguments or keywords are available and that

you must press Enter to complete the command.

Table 1-5 shows examples of how you can use the question mark (?) to assist you in entering commands.

Ta b l e 1-4 Help Commands and Purpose



Command Purpose

help

Provides a brief description of the help system in any command mode.

abbreviated-command-entry?

Provides a list of commands that begin with a particular character string. (No space

between command and question mark.)

abbreviated-command-entry<Tab>

Completes a partial command name.

Lists all commands available for a particular command mode.

command ?

Lists the keywords or arguments that you must enter next on the command line.

(Space between command and question mark.)

Cisco ASR 1000 Configuration Guide

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