Ubuntu

Ubuntu Server Edition is one of the most widely deployed server platforms worldwide, as is the Ubuntu Desktop version. Current versions of Ubuntu allow both server and desktop packages to be installed interchangeably. Ubuntu is a derivative of the Debian Linux operating system.

There are many guides and manuals available for Ubuntu.

• Official Ubuntu Help pages
• Ubuntu Guide (unofficial) -- help manual, tips, FAQ, and software guide
• Official Ubuntu Forums

Installation standardization

There is an effort to make installations in various Linux and other *nix filesystems adhere to a consistent folder schema.

Here is info on the original proposed specifications: Filesystem Hierarchy Standard

This specification continues to evolve with time, as the standardization project continues.