Cisco Systems Cisco IOS XR manual Command History, Keystrokes Used as Command Aliases

Chapter 6 CLI Tips, Techniques, and Shortcuts

Command History

Multiple commands can be supported under a single command alias, and multiple variables can be supported for each command. If multiple commands are specified under a single alias, then each command is executed in the order in which it is listed in the alias command.

In the following example, an alias named my-cookieis created for the Management Ethernet interface, and then the new alias is specified to enter interface configuration mode:

RP/0/0/CPU0:router(config)# alias my-cookie mgmtEth 0/0/CPU0/0

RP/0/0/CPU0:router(config)# interface my-cookie

RP/0/0/CPU0:router(config)# interface mgmtEth 0/0/CPU0/0

RP/0/0/CPU0:router(config-if)#

After you enter a command with an alias, the router displays the command you entered with the alias value so that you can verify that alias value.

To delete a specific alias, enter the no form of the alias command with the alias name.

Keystrokes Used as Command Aliases

The system can be configured to recognize particular keystrokes (key combination or sequence) as command aliases. In other words, a keystroke can be set as a shortcut for executing a command. To enable the system to interpret a keystroke as a command, use the Ctrl-V or Esc, Q key combinations before entering the command sequence.

Command History

The Cisco IOS XR software lets you display a history of the most recently entered and deleted commands. You can also redisplay the command line while a console message is being shown. The following sections describe the command history functionality:

•Displaying Previously Entered Commands, page 6-16

•Recalling Previously Entered Commands, page 6-17

•Recalling Deleted Entries, page 6-17

•Redisplaying the Command Line, page 6-17

Note To roll back to a previously committed configuration, see the “Managing Configuration History and Rollback” section on page 5-3.

Displaying Previously Entered Commands

The Cisco IOS XR software records the ten most recent commands issued from the command line in its history buffer. This feature is particularly useful for recalling long or complex commands or entries, including access lists.

To display commands from the history buffer, enter the show history command as follows:

RP/0/RP0/CPU0:router# show history

show configuration history commit show configuration commit list

	Cisco IOS XR Getting Started Guide
6-16	OL-10957-02