Help with cronjob command line

You're not running the command correctly: http://www.codeigniter.com/user_guide/general/cli.html

Code:

$ cd /path/to/project;

$ php index.php tools message

The controller and method are separated by a space not a /

Codeigniter is simply one of the tools you need to learn to be a successful developer. Always add more tools to your coding arsenal!