Get interface IP address from terminal

Grabbing just an IP address from a network interface can be useful for scripting. In the example below the assumed interface is eth0.

ip a show eth0 | grep "inet " | cut -d' ' -f6 | cut -d/ -f1

You can then save this into a variable and use it in other commands.

local_ip=$(ip a show eth0 | grep "inet " | cut -d' ' -f6 | cut -d/ -f1)

python3 -m http.server 8000 --bind $local_ip
hugo server --bind $local_ip --baseURL=http://$local_ip