Performing History Substitution; Cisco Ios Command Modes - Cisco 7604 Configuration Manual

Performing History Substitution

Performing History Substitution
The history buffer stores the last 20 commands you entered. History substitution allows you to access
these commands without retyping them, by using special abbreviated commands.
history substitution commands.
Table 2-2
Command
Ctrl-P or the up arrow key.
Ctrl-N or the down arrow key.
Router# show history
1. The arrow keys function only on ANSI-compatible terminals such as VT100s.

Cisco IOS Command Modes

For complete information about Cisco IOS command modes, see the Cisco IOS Configuration
Note
Fundamentals Configuration Guide at this URL:
http://www.cisco.com/en/US/docs/ios/12_2/configfun/configuration/guide/ffun_c.html
The Cisco IOS user interface is divided into many different modes. The commands available to you
depend on which mode you are currently in. To get a list of the commands in a given mode, type a
question mark (?) at the system prompt. See the
section on page
When you start a session on the router, you begin in user mode, often called user EXEC mode. Only a
limited subset of the commands are available in EXEC mode. To have access to all commands, you must
enter privileged EXEC mode. Normally, you must type in a password to access privileged EXEC mode.
From privileged EXEC mode, you can type in any EXEC command or access global configuration mode.
The configuration modes allow you to make changes to the running configuration. If you later save the
configuration, these commands are stored across reboots. You must start at global configuration mode.
From global configuration mode, you can enter interface configuration mode, subinterface configuration
mode, and a variety of protocol-specific modes.
Note With Release 12.1(11b)E and later, when you are in configuration mode you can enter EXEC mode-level
commands by entering the do keyword before the EXEC mode-level command.
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
2-4
History Substitution Commands
1
1
2-5.
Chapter 2
Purpose
Recalls commands in the history buffer, beginning
with the most recent command. Repeat the key
sequence to recall successively older commands.
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.
While in EXEC mode, lists the last several
commands you have just entered.
"Displaying a List of Cisco IOS Commands and Syntax"
Command-Line Interfaces
Table 2-2 lists the
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