#!/bin/bash
#Filename: change_track.sh
#Description: Script to track changes to webpage

if [ $# -eq 2 ];
then
	echo -e "$Usage $0 URL\n"
	exit -1;
fi



first_time=0
# Not first time

if [ ! -e "last.html" ];
then
	first_time=1
	# Set it is first time run
fi

curl --silent $1 -o recent.html

if [ $first_time -ne 1 ];
then
	changes=$(diff -u last.html recent.html)
	if [ -n "$changes" ];
	then
		echo -e "Changes:\n"
		echo "$changes"
	else
		echo -e "\nWebsite has no changes"
	fi
else
	echo "[First run] Archiving.."

fi
	

cp recent.html last.html