1. Directory Structure


Linux directory tree


Linux directory tree

Directory Structure




Main directory


Buil-in executable files


Boot files and kernel


Configuration directory


Runtime scripts


Devices and drivers


User files


Shared libraries


Optional applications


Superuser home directory


Superuser built-in binary files


Optional services


Temporary files (removed on startup)


User installed files


Application executable files


Applications data files


User installed applications executable files


Superuser installed applications executable files


Application superuser executable files


Application source codes


Installed applications files


Application lock files


Applications and system log files


Application PID files


System spool files (crontab, mail, printer)