script that alerts when sat website's maintenance message goes away

check-for-sat-site.sh

#!/bin/bash

while curl -k --silent -A 'Mozilla/6.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36' 'https://sat.collegeboard.org' | grep '<h1 class="title" id="page-title">Temporarily Unavailable</h1>' >/dev/null 2>&1
do
	gdate -R | tr -d '\n'
	echo " | Site still in maintenance mode"
	sleep 10
done

osascript -e 'tell app "System Events" to display alert "SAT Website seems to be back" message "Maintenance message has disappeared!"'