Cisco CRS-1 - Carrier Routing System Router Getting Started Guide

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Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 3 CLI Tips, Techniques, and Shortcuts
Command History
Note To roll back to a previously committed configuration, see the “Configuration History and Rollback”
section on page 2-23.
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.
To recall commands from the history buffer, use one of the commands or key combinations listed in
Table 3-6.
Table 3-6 Command History
Note Use the terminal history command to set the number of command line entries the system holds for recall
during a terminal session.
Recalling Deleted Entries
The Cisco IOS XR CLI also stores deleted commands or keywords in a history buffer. The buffer stores
the last ten items that have been deleted using Ctrl-K, Ctrl-U, or Ctrl-X. Individual characters deleted
using Backspace or Ctrl-D are not stored.
Table 3-7 identifies the keystroke combinations used to recall deleted entries to the command line.
Table 3-7 Keystroke Combinations to Recall Deleted Entries
Note The Esc, Y key sequence does not function unless the Ctrl-Y key combination is pressed first. If the
Esc, Y is pressed more than ten times, the history cycles back to the most recent entry in the buffer.
Command or Key Combination Purpose
Ctrl-P or the up arrow key Recalls commands in the history buffer, beginning with the most recent
command. Repeat the key sequence to recall successively older commands.
Ctrl-N or the down arrow key Returns to more recent commands in the history buffer after recalling
commands with Ctrl-P or the up arrow key. Repeat the key sequence to recall
successively more recent commands.
Command or Key Combination Recalls the
Ctrl-Y Most recent entry in the buffer (press the keys simultaneously).
Esc, Y Previous entry in the history buffer (press the keys sequentially).

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English