Using the CLI

Use the commands described in this section to navigate the CLI. For a complete description of the CLI, see Command-Line Interface.

configure

• Use to enter Global Configuration mode.
• Global Configuration mode provides access to other configuration modes, such as Interface Configuration mode. See Command-Line Interface.
• This command allows other commands to be executed from a terminal or a file.
• This command is not allowed for a short time after a warm restart (warm switchover) occurs. This delay allows some applications time to complete their warm-restart initialization. However, if the warm restart is not complete in 5 minutes, the warm start is cancelled and configuration access is restored.
• Example 1

  host1#configure

  Configuring from terminal or file [terminal]?

  Enter configuration commands, one per line. End with CNTL/Z.

  host1(config)#

• Example 2

  host1#configure

  Configuring from terminal or file [terminal]? file

  File name: system1.scr

  Proceed with configure? [confirm]

  host1(config)#

• There is no no version.
• See configure.

disable

• Use to exit Privileged Exec mode and return to User Exec mode.
• Use to move to a lower Privileged Exec mode level without returning to User Exec mode. Specifying a privilege level after the disable command changes the Privileged Exec mode to the lower level that you specify; you do not return to User Exec mode.
• Example 1

  host1#disable

  host1>

• Example 2

  host1#show privilege

  Privilege level is 10

  host1#disable 5

  host1#show privilege

  Privilege level is 5

• There is no no version.
• See disable.

do

• Use to issue an Exec mode command from any CLI configuration command mode.
• Example

  host1(config)#do show configuration | begin interface

• The do command functions the same as the run command.
• There is no no version.
• See do.

enable

• Use to move from User Exec to Privileged Exec mode.
• Privileged Exec mode allows you to access all other user interface modes. From here you can configure, monitor, and manage all aspects of the router.
• You can access the Privileged Exec commands using one of 16 levels of command privilege. If you do not enter a privilege level and you are not accessing the router through a RADIUS authentication account, the default CLI access level is 10. For information about CLI levels of access, see Privileged-Level Access in Command-Line Interface.
• Set a password for this mode by using either the enable password or the enable secret command in Global Configuration mode. This protects the system from any unauthorized use.
• Once a password is set, anyone trying to use Privileged Exec mode will be asked to provide the password.
• Example 1 (accessing Privileged Exec mode at the default level 10)

  host1>enable

  password:*******

  host1#

• Example 2 (accessing Privileged Exec mode at the highest level 15; a password is not set for this example)

  host1>enable 15

  host1#

• There is no no version.
• See enable.

end

• Use to exit Global Configuration mode or any of the other Configuration modes. You may also use Ctrl+z to exit these modes.
• Executing this command returns you to the User Exec mode.
• Example

  host1(config)#end

  host1#

• There is no no version.
• See end.

exit

• Use to exit the current command mode or the system when issued from the User Exec mode.
• Example

  host1#exit

  host1>

• There is no no version.
• See exit.

help

• Use to display basic information about the interactive help system.
• Example

  host1#help

  Use the help options as follows:

  ?, or command<Space>? - Lists the set of all valid next keywords or                       arguments

  partial-keyword?      - Lists the keywords that begin with a certain                       character string

  partial-keyword<Tab> - Completes the partial keyword

• There is no no version.
• See help.

run

• Use to issue an Exec mode command from any CLI configuration command mode.
• Example

  host1(config)#run show configuration | begin interface

• The run command functions the same as the do command.
• There is no no version.
• See run.

sleep

• Use to make the CLI pause for a specified period of time (in seconds).
• Pausing is very useful in configuration script files.
• Example

  host1#sleep 60

• There is no no version.
• See sleep.