The directories of the Linux operating system have a tree architecture that is standardized by the Linux Filesystem Hierarchy Standard (FHS). The main directories Linux uses include:
/ (root filesystem) – This is the top-level directory and contains all the files for booting Linux
/bin – This directory contains user-executable files
/dev – Device files for any connected hardware devices (not drivers)
/home – The location of user files, with subdirectories for each user
/lib – Shared library files that are essential for the system boot
/media – A directory for external removable storage and drives like USB thumb drives