Create two files in /etc/systemd/system:

1. packtpub-crawler.service

2. packtpub-crawler.timer

Enable the script with```sudo systemctl enable packtpub_crawler.timer```.

You can test the service with```sudo systemctl start packtpub_crawler.timer``` and see the output with```sudo journalctl -u packtpub_crawler.service -f```.

The script downloads also the free ebooks from the weekly packtpub newsletter.

The[URL](https://goo.gl/kUciut) is generated by a Google Apps Script which parses all the mails.