Cisco Systems Cisco IOS XR manual Completing a Partial Command with the Tab Key

Chapter 6 CLI Tips, Techniques, and Shortcuts

CLI Tips and Shortcuts

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

Step 5 Press Return to execute the command:

RP/0/RP0/CPU0:router(config)# ipv4 access-list list1 deny 172.31.134.0

Note The configuration does not become active until you enter the commit command to add the target configuration to the running configuration.

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, enter 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 Tab is pressed:

RP/0/RP0/CPU0:router# conf<Tab>

RP/0/RP0/CPU0:router# configure

The CLI displays the full command name. You must then press Return to execute the command. This feature 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/RP1/CPU0:router#co<Tab> configure copy RP/0/RP1/CPU0:router#con<Tab>

RP/0/RP1/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/0/0/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, enter the “?” after the command:

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

Cisco IOS XR Getting Started Guide

6-4 OL-10957-02