Show public IP and other info from simple bash script or alias

example_output.txt

Gateway:
192.168.1.1
Private:
192.168.1.101/24
Public:
199.199.199.199

myip.bash

#!/bin/bash
printf "Gateway:\n"; route | grep "^default" | cut -d " " -f 10
# Adjust network interface number (here I use interface #2 "2:" for lan address):
printf "Private:\n"; ip -o ad | grep "2:" | grep "inet " | cut -d " " -f 7
# You do not need dig/nslookup for this to work (no dnsutils packages needed):
printf "Public:\n"; host -t a myip.opendns.com | cut -d " " -f 4
# Instructions:
# Put this file in your path. (It does not need the ".bash" file extension.)
# Set permissions (example): `chmod 755 ~/scripts/myip`
# Run it.