Dolibarr for Ubuntu is a version of Dolibarr ERP/CRM, packaged with Apache, Mysql, PHP automatic installer for Ubuntu/Debian users that don't have any technical knowledges.
In a few seconds, after running the deb package Dolibarr for Ubuntu, you are able to work on Dolibarr, even if you don't have already any web server or if you don't know what is Apache, Mysql or PHP. Everything is installed for you.
For install, you can click on the dolibarr.x.y.z.deb file if you are in a nautilus window, or with console type:
$ sudo dpkg -i dolibarr.x.y.z.deb
where x.y.z is the dolibarr version, ex. dolibarr.2.8.0.deb
Dolibarr for Ubuntu is an "all in one" package that can be downloaded from page http://www.dolibarr.org/downloads/