C H A P T E R
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Cisco ASR 901 Aggregation Services Router Command Reference Guide
OL-26031-07
1
Using Command-Line Interface
Revised: July 30, 2014, OL-26031-07
This chapter provides information for understanding the Cisco ASR 901 series router using the
command-line interface (CLI). This chapter includes the following sections:
•
Getting Help, page 1-1
•
How to Find Command Options, page 1-2
•
Understanding Command Modes, page 1-4
•
Using the No and Default Forms of Commands, page 1-5
•
Saving Configuration Changes, page 1-5
For an overview of the Cisco ASR 901 series router, refer to the
Cisco ASR 901 Series Aggregation
Services Router Software Configuration Guide
.
Getting Help
To obtain a list of commands that are available for each command mode, enter a question mark (
?
) at the
system prompt. You also can obtain a list of any command’s associated keywords and arguments with
the context-sensitive help feature.
Table 1-1
lists commands you can enter to get help that is specific to a command mode, a command, a
keyword, or an argument.
Table 1-1
Getting Help
Command
Purpose
abbreviated-command-entry
?
Obtain a list of commands that begin with a
particular character string. (Do not leave a space
between the command and question mark.)
abbreviated-command-entry
<
Tab
>
Complete a partial command name.
?
List all commands available for a particular
command mode.
command
?
List a command’s associated keywords. Leave a
space between the command and question mark.
command
keyword
?
List a keyword’s associated arguments. Leave a
space between the keyword and question mark.
