If you are new to the Linux operating system, its file structure can be intimidating to navigate, even for a seasoned Windows administrator. Although each developer of a Linux operating system (distro) can customize their distribution’s folder structure, most follow the Filesystem Hierarchy Standard (FHS) maintained by the Linux Foundation. Based on the Unix file system, it establishes the convention for the folder structure used in Linux. The first version of the FHS was released on February 14, 1994 and has evolved ever since to version 3 released on May 18, 2015.
Before describing the various directories in a Linux file system, there are some important factors to note - particularly for someone that has worked in a Windows environment for a period of time. While there are obviously more differences between Linux and Windows than what is listed here, for the purposes of this article, the following is worth noting.