Cisco CISCO876-SEC-I-K9 Configuration Guide - Page 162

Using Commands Appendix A Cisco IOS Software Basic Skills Using Commands This section provides some tips about entering Cisco IOS commands at the command-line interface (CLI). Abbreviating Commands You only have to enter enough characters for the router to recognize the command as unique. This example shows how to enter the show version command: Router # sh v Undoing Commands If you want to disable a feature or undo a command you entered, you can enter the keyword no before most commands; for example, no ip routing. Command-Line Error Messages Table A-3 lists some error messages that you might encounter while using the CLI to configure your router. Table A-3 Common CLI Error Messages Error Message % Ambiguous command: "show con" % Incomplete command. % Invalid input detected at '^' marker. Meaning How to Get Help You did not enter enough characters for your router to recognize the command. Reenter the command, followed by a question mark (?) with no space between the command and the question mark. The possible keywords that you can enter with the command are displayed. You did not enter all of the keywords or values required by this command. Reenter the command, followed by a question mark (?) with no space between the command and the question mark. The possible keywords that you can enter with the command are displayed. You entered the command Enter a question mark (?) to incorrectly. The error occurred display all of the commands that where the caret mark (^) appears. are available in this particular command mode. Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide A-6 OL-5332-01