Useful commands (cont.)

• list all interfaces in a router

  router# show interface
  

• display running configuration

  router# show running-configuration
  

• save the configuration

  router# copy running-config startup-config
  

• display IOS information

  router# show version
  

• display contents of flash

  router# show flash
  

• display running network protocols

  router# show protocols
  

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