ifconfig

ifconfig [interface] [options]

Displays or configures network interface settings — IP address, netmask, and interface status.

// FLAGS

(no args)show all interfaces

up / downenable or disable an interface

-ashow all interfaces including inactive ones (on some systems)

// EXAMPLE

ifconfig eth0 — shows eth0's IP address, MAC address, and traffic statistics.

// GOTCHA

ifconfig is deprecated on modern Linux in favor of ip (part of iproute2) and isn't installed by default on many recent distros — it's still common on macOS and older systems, but shouldn't be assumed present everywhere.

// RELATED COMMANDS

ip ipconfig curl