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How to Read Router CLI Command Examples

Some examples of command input and output for the router command line interface (CLI) include special formatting intended to help you understand what you are doing and seeing.

router> enable [Starts privileged mode; prompt changes from router> to router#]
router# show version
Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.3(2)T, RELEASE SOFTWARE (fc3)
[Additional lines of command output are displayed]
–More–  [Press Enter until you see the router prompt]
router#  [Stops at router prompt]

In the example of command input and output above:

  • At the beginning of lines, words and characters such as “router>” and “router#” are router CLI prompts. Instead of “router”, you may see the name of the router or some other word.
  • Words in boldface are router CLI commands that you enter, such as “enable” and “show version“.
  • Words not in boldface are router CLI prompts and command output. The actual command output that you see may not match the examples exactly, but should be similar.
  • Underlines are added to help you quickly find relevant information in lines, such as under “C800-UNIVERSALK9-M” and “Version 15.3(2)T”. These underlines do not appear in actual command output.
  • Brackets [ ] enclose explanations to help you understand a line of command input or output. These explanations do not appear in actual command input or output and you should not type them into the CLI.