External IP logger

Synopsis

A script that shows and saves computer's external IP (assigned by ISP).

Scenario

We want to log our external IP to a file and each time we run the script it checks if there is a change : if the IP changed, it updates the file, else the log stays the same.

Type

Bash script

Prerequisites

• lynx sudo apt-get install lynx

Usage

Make the script executable chmod +x fetch-ext-ip.sh

Run the script ./fetch-ext-ip.sh