ip

ip is a *nix command for viewing networking information of the host. It’s a better version of ifconfig that is present on modern Linux systems.

You may abbreviate a subcommand as long as it is unambiguous.

For example, ip a, ip addr, and ip address are all equivalent, since there is no other subcommand that starts with a.

Common oneliners:

# List network interfaces and associated IP addresses
ip a # / addr / address
 
# Show routing table
ip r # / route

See Interpreting ip link and address command output to understand the output of ip addr.