We’ve already mentioned a couple of show commands in the previous sections, so you should already we somewhat aware of this command. This command is used to display the device’s configuration, statistics, command history, interface status… The show command is invoked from the enable mode and can accept a lot of parameters:
Floor1#show ? aaa Show AAA values access-lists List access lists arp Arp table cdp CDP information class-map Show QoS Class Map clock Display the system clock controllers Interface controllers status crypto Encryption module debugging State of each debugging option dhcp Dynamic Host Configuration Protocol status dot11 IEEE 802.11 show information file Show filesystem information flash: display information about flash: file system ... terminal Display terminal configuration parameters users Display information about terminal lines version System hardware and software status vlan-switch VTP VLAN status vtp Configure VLAN database
Here is a brief description of the most popular show commands:
- show running-config – displays the running (current) configuration of your device:
- show startup-config – displays the startup configuration of your device:
- show ip interface brief – provides information about the interfaces on a router, including the logical (IP) address and status:
- show history – shows the command history:
- show interface INTERFACE – displays the status of the specified interface:
- show version – shows information about the device, such as the IOS version running on the device, number of interfaces, device model, time of the last reboot, amount of memory available on the device, etc.
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