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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router
OL-24755-01
Chapter 5 CLI Tips, Techniques, and Shortcuts
Command History
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 combination
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 5-114
• Recalling Previously Entered Commands, page 5-114
• Recalling Deleted Entries, page 5-115
• Redisplaying the Command Line, page 5-115
• Displaying Persistent CLI History, page 5-115
Note To roll back to a previously committed configuration, see Managing Configuration History and
Rollback.
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/0/0/CPU0:router# show history
show configuration history commit
show configuration commit list
show config commit changes 1000000001
show history
Recalling 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.
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