The meaning of the "Linux" root directory naming

1./bin: Command required to obtain minimal system operability
2./boot: Kernel and files required to load the kernel
3./dev: Device items for terminals, disks, modems, etc.
4./etc: Key startup files and configuration files
5./home: User's main directory
6./LIB:C Compiler Library and part C compiler
7,/media: The installation point of the file system on removable media
8./OPT: Optional Application installation package
9./proc: Image of all running processes
10,/root: Superuser's home directory
11./sbin: command to boot, repair or restore the system
12./tmp: Temporary files disappearing every time you reboot
13./usr: Hierarchy of secondary files and commands
14./usr/bin: Most commands and executable files
15,/usr/include: Compile the C program header file
16./usr/lib: library, supporting documents for standard program use
17./usr/local: Local software (software written or installed by the user)
18./usr/local/bin: Local executable file
19./USR/LOCAL/ETC: Local System configuration files and commands
20./usr/local/lib: Local Support Files
21./usr/local/sbin: Static-linked Local System maintenance commands
22,/USR/LOCAL/SRC:/usr/local/* source code
23./usr/man: Online User manual
24./usr/sbin Less critical system administration commands and Repair commands
25,/usr/share: A variety of systems common things (Read only)
26,/usr/share/man: Training level User manual
27,/USR/SRC: The source code of the non-local package
28,/var: system-specific data and configuration files
29,/var/adm: A variety of different things
30./var/log: Various system log files
31,/var/spool: For printers, mail, etc. used in the spool directory
32,/var/tmp: More temporary space (after reboot, the file is retained)

The meaning of the "Linux" root naming