Linux command for public ip address

Question

I want command to get Linux machine(amazon) external/public IP Address.

I tried hostname -I and other commands from blogs and stackoverflow like

ifconfig | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p'

and many more. But they all are giving me internal IP Address.

Then I found some sites which provides API for this.

Example : curl http://ipecho.net/plain; echo

But I don't want to rely on third party website service. So, is there any command line tool available to get external IP Address?

Answer 1

You could use this script

# !/bin/bash 
#
echo 'Your external IP is: '
curl -4 icanhazip.com

But that is relying on a third party albeit a reliable one. I don't know if you can get your external IP without asking someone/somesite i.e. some third party for it, but what do I know.

you can also just run:

curl -4 icanhazip.com

This is doing the same thing as a command the -4 is to get the output in Ipv4