ATutor readme:

To install ATutor, point your web browser to the installation directory where ATutor was extracted, and follow the Installer's instructions.
e.g. http://localhost/ATutor

For full installation instructions see:
https://atutor.github.io/atutor/docs/installation

Installing from a Github Clone (assuming you know Github)

1. Fork ATutor into your own Github account, at:
https://github.com/atutor/ATutor

2. Clone ATutor from the fork you created into the document root of your webserver (for convenience), with:
git clone https://github.com/yourname/ATutor.git

3.  Before running the Installer, create an empty config.inc.php file in the ATutor/include/ directory. If you have a command line to work from, while located in the ATutor directory, create the file with: 

touch include/config.inc.php

4. Follow the installation instructions at the link above.

5. Or, follow the instructions given by the ATutor Installer.

GitHub Basics
If you want to contribute to ATutor, a few Git basics will describe how.
See: https://atutor.github.io/atutor/docs/dev_with_github.html

For additional ATutor documentation, see the ATutor Handbook in ATutor, or at the following links:

Administrators
https://atutor.github.io/atutor/handbook/admin.html

Instructors:
https://atutor.github.io/atutor/handbook/instructor.html

Users:
https://atutor.github.io/atutor/handbook/users.html

Have fun, and take it places!

greg