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do <command>
Run a privileged-exec command from inside config mode without exiting.
Works on: Router, SwitchMode: config, iface, router, vlan, line, dhcp
Example
R1(config)# do show ip int briefRun this command live
Don't just read it — type do <command> in a real network simulator in your browser and watch it take effect. No install, no account needed to start.
Frequently asked
What does the "do <command>" command do?
Run a privileged-exec command from inside config mode without exiting.
Example of "do <command>"
R1(config)# do show ip int brief