Cisco Systems Cisco IOS XR manual Redirecting Output to a File

Chapter 6 CLI Tips, Techniques, and Shortcuts

Displaying System Information with show Commands

Redirecting Output to a File

By default, CLI command output is displayed on screen. CLI command output can be redirected to a user-specified file by entering a filename and location after the show command syntax. The following command syntax is used to redirect output to a file:

show command file filename

This feature enables you to save any show command output in a file for further analysis and reference. When you choose to redirect command output, consider the following guidelines:

•If the full path of the file is not specified, the default directory for your account is used. You should always save your target configuration files to this location.

•If the saved output is to be used as a configuration file, the filename should end with the cfg suffix for easy identification. This suffix is not required, but can help locate target configuration files.

Example: myconfig.cfg

In the following example, a target configuration file is saved to the default user directory:

RP/0/RP0/CPU0:router# configure

RP/0/RP0/CPU0:router(config)# show configure file disk0:myconfig.cfg

RP/0/RP0/CPU0:router(config)# abort

RP/0/RP0/CPU0:router#

Narrowing Output from Large Configurations

Displaying a large running configuration can produce thousands of lines of output. To limit the output of a show command to only the items you want to view, use the procedures in the following sections:

•Limiting show Command Output to a Specific Feature or Interface, page 6-8

•Using Wildcards to Display All Instances of an Interface, page 6-9

Limiting show Command Output to a Specific Feature or Interface

Entering keywords and arguments in the show command limits the show output to a specific feature or interface.

In the following example, only information about the static IP route configuration is displayed:

RP/0/RP1/CPU0:router# show running-config router static

router static address-family ipv4 unicast

0.0.0.0/0 10.21.0.1

0.0.0.0/0 pos0/1/0/1 10.21.0.1

!

!

In the following example, the configuration for a specific interface is displayed:

RP/0/RP0/CPU0:router# show running-config interface POS 0/1/0/1

interface pos0/1/0/1

ipv4 address 10.21.54.31 255.255.0.0

!

Cisco IOS XR Getting Started Guide

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