A shell script for keeping heroku apps alive.
To install the shell script and add the cronjob automatically, just execute the following command:
curl https://raw.github.com/danielpuglisi/keep-alive/master/install.sh | sudo sh
The install script creates the /etc/cron.custom directory, puts the keep-alive.sh into this directory
and adds the specific cronjob to the /etc/crontab file.
For a closer look what the file does, click here.
If you want to install the script by yourself, read this blog post.