nexus-availability.sh

#!/usr/bin/env bash

# Check the availability of Nexus X devices.
#
# Install wget from Homebrew:
# $ brew install wget
#
# Setup OS X Mountain Lion to send mails from Terminal:
# $ sudo mkdir -p /Library/Server/Mail/Data/spool
# $ sudo /usr/sbin/postfix start
#
# Edit crontab to run this script every 30 minutes:
# $ crontab -e
#   0,30 * * * * /path/to/script/nexus-availability.sh
#
# Create a filter in gmail for your local email account:
# 'Never send it to Spam'

nexus4=https://play.google.com/store/devices/details?id=nexus_4_16gb
nexus7=https://play.google.com/store/devices/details?id=nexus_7_32gb

model=$nexus4

outOfStock=$(wget -qO- $model | grep -Eio 'AGOTADO|SIN STOCK')
if [ "$outOfStock" == "" ]; then
    echo "Hay stock de Nexus, entra a comprarlo ya: $model" |
    mail -s "Hay stock de Nexus" avances123@gmail.com
fi