random/getip.sh

#!/usr/bin/env bash

# This is a simple script to get the ip addresses of a machine.

echo 'ipv4:'
for i in eth0 eno1 wlan0; do
    $(ip -4 addr | grep -q " $i:") || continue
    addr="$(ip -4 addr show dev $i | grep -oP '(?<=inet\s)\d+(\.\d+){3}')"
    [ -z "$addr" ] || echo -e "\t$i: \t\t$addr"
done
addr=$(curl --connect-timeout 3 -s ipv4.icanhazip.com)
echo -e "\texternal: \t${addr:-n/a}"

[ "$(cat /sys/module/ipv6/parameters/disable)" == "1" ] && exit

echo 'ipv6:'
for i in eth0 eno1 wlan0; do
    $(ip -6 addr | grep -q " $i:") || continue
    addr="$(ip -6 addr show dev $i | grep -oP '(?<=inet6\s)\w+(\:{1,2}\w+){4}(?=.+link)')"
    [ -z "$addr" ] || echo -e "\t$i: \t\t$addr"
done
addr=$(curl --connect-timeout 3 -s ipv6.icanhazip.com)
echo -e "\texternal: \t${addr:-n/a}"