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CHAPTER
FINAL DRAFT —Cisco Confidential
5-1
Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-17502-01
5
CLI Tips, Techniques, and Shortcuts
This chapter describes techniques for using the command-line interface (CLI) of the
Cisco
IOS XR software.
Contents
• CLI Tips and Shortcuts, page 5-1
• Viewing System Information with show Commands, page 5-5
• Wildcards, Templates, and Aliases, page 5-11
• Command History, page 5-17
• Key Combinations, page 5-18
Note Commands can be entered in uppercase, lowercase, or mixed case. Only passwords are case sensitive.
However, the Cisco Systems documentation convention presents commands in lowercase.
CLI Tips and Shortcuts
The following sections describe tips and shortcuts useful when using the CLI:
• Entering Abbreviated Commands, page 5-1
• Using the Question Mark (?) to Display On-Screen Command Help, page 5-2
• Completing a Partial Command with the Tab Key, page 5-4
• Identifying Command Syntax Errors, page 5-4
• Using the no Form of a Command, page 5-4
• Editing Command Lines that Wrap, page 5-5
Entering Abbreviated Commands
You can abbreviate commands and keywords to the number of characters that allow a unique
abbreviation. For example, the configure command can be abbreviated as config because the abbreviated
form of the command is unique. The router accepts and executes the abbreviated command.