File System Hierarchy

• The Filesystem Hierarchy Standard (FHS) defines the main directories and their contents in Linux operating systems
• All files and directories appear under the root directory "/", even if they are stored on different physical devices
• Single rooted inverted tree like structure
• Begins at root directory (/)

Directory	Description
/	Primary hierarchy root and root directory of the entire file system hierarchy
/home, /root	Home Directories
/bin, /usr/bin, /usr/local/bin	User Executables
/sbin, /usr/sbin, /usr/local/sbin	Executables used by root user
/etc	Configuration files
/tmp	Temporary files
/boot	Kernel and Boot loaders
/var, /srv	Server data
/proc, /sys	System information
/dev	Devices attached to the system
/lib, /usr/lib, /usr/local/lib	Shared libraries needed to execute binaries
/opt	Provides storage for large, static application packages
/media, /mnt	Mount points

Absolute path - Complete road map to file location (/usr/share/doc/HTML/index.html)

Relative path - Specify location relative to your current working directory (index.html)