A complete backup solution
The working directory and the storage location address my be easily inferred from the concrete5 dashboard. Go to File Storage Locations and click to add a new directory. You'll see the directory hint lets you know the path. On my install it is /home/wwwcus6/public_html/. Since my backup directory was in the root the path is /home/wwwcus6/backup_directory.
It even gives you the cron job commands to set up in the cpanel cron tab. Just select your options.
Easy as pie. Sends emails on backup completions and errors.