Working with Filenames and Path and Globing

Motivation

Here you will get an rough overview of where to find things in the file system and how to navigate the file system.

File System Hierarchy

In Unix/Linux the Top of the file system is the root directory named /. There are no drive letters as you know them from a certain other operating system. What you find below is a structure that exists since the early days of Unix. Here are the most important directories and what they are used for in Linux.

Filsystem Hierarchy

/	everything starts here.
/etc	System-wide configuration files.
/usr	Program Files (executable, libraries and files the programs need)
/