cron job to alert when a car is posted on craigslist

craigslist.sh

#!/bin/bash

countfile="/root/old.count.txt"
touch $countfile
old_count=$(cat $countfile)
new_count=$(curl -s https://sfbay.craigslist.org/search/cto\?search_distance_type\=mi\&min_price\=2000\&max_price\=8000\&auto_make_model\=honda\&max_auto_miles\=100000\&auto_title_status\=1\&query\=%22mountain+view%22+%7C+%22palo+alto%22+%7C+%22sunnyvale%22+%7C+%22menlo+park%22+%7C+%22redwood+city%22+%7C+%22santa+clara%22 | grep paginator| tail -n 1 | ruby -e 'puts /totalcount">([0-9]*)/.match($stdin.read())[1]')

if [ $old_count -ne $new_count ]; then
   curl -X POST https://maker.ifttt.com/trigger/cars/with/key/XXXXXXXXXXXXXXXX
   echo $new_count > $countfile
fi