Specifications

CHAPTER
2-1
Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
2
Cisco IOS Software Basics
This chapter provides an overview of the Cisco IOS software. Read this section before you configure the
router by using the command-line interface (CLI). This chapter includes the following topics:
• Getting Help, page 2-1
• Understanding Command Modes, page 2-2
• Undoing a Command or Feature, page 2-3
• Saving Configuration Changes, page 2-3
Understanding this information saves you time as you use the CLI. If you have never used the Cisco IOS
software or if you need a review, read this chapter before you proceed. If you are already familiar with
the Cisco IOS software, go to Chapter 3, “First-Time Configuration.”
Getting Help
Use the question mark (?) and arrow keys to help you enter commands:
• For a list of available commands, enter a question mark:
Router> ?
• To complete a command, enter a few known characters followed by a question mark (with no space):
Router> s?
• For a list of command variables, enter the command followed by a space and a question mark:
Router> show ?
• To redisplay a command that you previously entered, press the Up Arrow key. Continue to press the
Up Arrow key to see more commands.