Cisco Systems A9K24X10GETR, ASR 9000, A9KMOD80TR Completing a Partial Command with the Tab Key

Chapter 5 CLI Tips, Techniques, and Shortcuts

CLI Tips and Shortcuts

F I N A L D R A F T — C i s c o C o n f i d e n t i a l

Completing a Partial Command with the Tab Key

If you cannot remember a complete command name or want to reduce the amount of typing you have to perform, type the first few letters of the command, then press the Tab key. If only one command begins with that character string, the system completes the command for you. If the characters you entered indicate more than one command, the system beeps to indicate that the text string is not unique and the system provides a list of commands that match the text entered.

In the following example, the CLI recognizes conf as a unique string in EXEC mode and completes the command when you press the Tab key:

RP/0/RSP0/CPU0:router# conf <Tab>

RP/0/RSP0/CPU0:router# configure

The CLI displays the full command name, but you must press Enter to execute the command. This allows you to modify or reject the suggested command.

In the next example, the CLI recognizes two commands that match the text entered:

RP/0/RSP1/CPU0:router# co<Tab> configure copy RP/0/RSP1/CPU0:router# con<Tab>

RP/0/RSP1/CPU0:router# configure

Tip If your keyboard does not have a Tab key, press Ctrl-I instead.

Identifying Command Syntax Errors

If an incorrect command is entered, an error message is returned with the caret (^) at the point of the error. In the following example, the caret appears where the character was typed incorrectly in the command:

RP/0/RSP0/CPU0:router# configure termiMal

^

% Invalid input detected at '^' marker.

Note The percent sign (%) indicates the line in which the error message occurred.

To display the correct command syntax, type the “?” after the command:

RP/0/RSP0/CPU0:router# configure ?

exclusive Configure exclusively from this terminal terminal Configure from the terminal

<cr>

Using the no Form of a Command

Almost every configuration command has a no form. Depending on the command, the no form may enable or disable a feature. For example, when configuring an interface, the no shutdown command brings up the interface, and the shutdown command shuts down the interface. The username command creates a new user, and the no username command deletes a user when entered with a valid username.

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

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