Filter
Top Products
2-3
Cisco CSR 1000V Series Cloud Services Router Software Configuration Guide
OL-27477-07
Chapter 2 Using Cisco IOS XE Software
Getting Help
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
commands listed in Table 2-4:
Finding Command Options
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
Global
configuration
From privileged EXEC mode, use the
configure terminal privileged EXEC
command.
Router(config)#
To return to privileged EXEC
mode from global configuration
mode, use the exit or end
command.
Interface
configuration
From global configuration mode, specify an
interface using an interface command.
Router(config-if)#
To return to global configuration
mode, use the exit command.
To return to privileged EXEC
mode, use the end command.
Table 2-3 Accessing and Exiting Command Modes (continued)
Command
Mode Access Method Prompt Exit Method
Table 2-4 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.)