Manoj Reddy's Reference Guide

alias

To create a command alias, use the alias global configuration command. Use the no form of this command to delete all aliases in a command mode or to delete a specific alias, and to revert to the original command syntax.

alias mode alias-name alias-command-line

no alias mode [alias-name]

Syntax Description

mode
Command mode of the original and alias commands. See Table 94 for a list of options for this argument.

alias-name
Command alias.

alias-command-line
Original command syntax.

Defaults

Default aliases are in EXEC mode as follows:


Command Alias	Original Command
h	help
lo	logout
p	ping
r	resume
s	show
w	where

Command Modes

Global configuration

Command History

Release	Modification
10.3	This command was introduced.

Usage Guidelines

You can use simple words or abbreviations as aliases. The aliases in the "Defaults" section are predefined. They can be turned off using the no alias command.

Table 94 shows the acceptable options for the mode argument in the alias global configuration command.

Table:Mode Argument Options


Argument Options	Mode
configuration	Global configuration
controller	Controller configuration
exec	EXEC
hub	Hub configuration
interface	Interface configuration
ipx-router	IPX router configuration
line	Line configuration
map-class	Map class configuration
map-list	Map list configuration
route-map	Route map configuration
router	Router configuration

See the summary of command modes in the "Using the Command Line Interface" chapter in the Configuration Fundamentals Configuration Guide for more information about command modes.

When you use online help, command aliases are indicated by an asterisk (*), as follows:

Router#lo?
*lo=logout  lock  login  logout

When you use online help, aliases that contain spaces (for example,telnet device.cisco.com 25) are displayed as follows:

Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# alias exec device-mail telnet device.cisco.com 25
Router(config)# end
Router# device-mail?
*device-mail="telnet device.cisco.com 25"

When you use online help, the alias is expanded and replaced with the original command, as shown in the following example with the td alias:

Router(config)# alias exec td trace device
Router(config)# ^Z
Router# t?
*td="trace device" telnet terminal test tn3270
trace

To list only commands and omit aliases, begin your input line with a space. In the following example, the alias td is not shown, because there is a space before thet? command line.

Router# t?
telnet terminal test tn3270 trace

As with commands, you can use online help to display the arguments and keywords that can follow a command alias. In the following example,the alias td is created to represent the command telet device . The /debug and /line switches can be added totelnet device to modify the command:

Router(config)#alias exec td telnet device
Router(config)# ^Z
Router# td ?
      /debug     Enable telnet debugging mode
      /line      Enable telnet line mode
      ...
      whois      Whois port
      <cr>
Router#telnet device

You must enter the complete syntax for the alias command. Partial syntax for aliases are not accepted. In the following example, the parser does not recognize the command t as indicating the alias td .

Router# t
% Ambiguous command: "t"

Examples

The following example creates the alias fixmyrt for the IP route198.92.116.16:

alias exec fixmyrt clear ip route 198.92.116.16

Related Commands

Command	Description
show aliases	Displays all alias commands.

Printed for apswan@ctr.ap.nic.in on Wed Mar 5 22:32:57 PST 2003

mode	Command mode of the original and alias commands. See Table 94 for a list of options for this argument.
alias-name	Command alias.
alias-command-line	Original command syntax.