Very Usefull cisco IOS show commands

Important Cisco Router Show commands and their uses listed below:

1FRouter2#show interfaces
Displays statistics for all interfaces
1FRouter2#show interface fa0/0
Displays statistics of fa0/0 interface. You may use other interface also.
1FRouter2#show ip interface brief
Displays a summary of all IPv4 interfaces, including status and IPv4 address assigned in router “1FRouter2”
1FRouter2#show ipv6 interface brief
Displays a summary of all IPv6 interfaces, including status and IPv6 address assigned in router “1FRouter2”
1FRouter2#show controllers serial 1/0
Displays statistics for interface hardware serial 1/0. Statistics display if the clock rate is set and if the cable is DCE, DTE, or not attached
1FRouter2#show clock
Displays the system clock of the router “1FRouter2”.
1FRouter2#show hosts
Displays the configured hostnames and their corresponding IP addresses of the router “1FRouter2”
1FRouter2#show users
Displays all users connected to the router “1FRouter2”
1FRouter2#show history
Displays history of Cisco IOS commands used
1FRouter2#show flash
Displays info about Flash memory
1FRouter2#show version
Displays info about loaded Cisco IOS software
1FRouter2#show arp
Displays the ARP table of the router “1FRouter2”. ARP table is the table which contains the resolved IPv4 address to MAC address mappings.
1FRouter2#show protocols
Displays status of configured Layer 3 protocols
1FRouter2#show startup-config
Displays configuration saved in NVRAM
1FRouter2#show running-config
Displays configuration currently running in RAM
1FRouter2#show ip route
Displays the IPv4 routing table of the router “1FRouter2”
1FRouter2#show ipv6 route
Displays the IPv6 routing table of the router “1FRouter2”

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