|  | 4.2 | Router Show Commands
| 4.2.2 |
The show running-config and show startup-config commands
Among the most used Cisco IOS software EXEC commands are show running-config and show startup-config. They allow an administrator to see the current running configuration on the router or the startup configuration commands that the router will use on the next restart. (Note: The commands, write term and show config, used with Cisco IOS Release 10.3 and earlier, have been replaced with new commands. The commands that have been replaced continue to perform their normal functions in the current release but are no longer documented. Support for these commands will cease in a future release.) You can recognize an active configuration file by the words current configuration at the top. You can recognize a backup configuration file when you see a message at the top that tells you how much non-volatile memory you have used.