[Linux] File System

Root file System (ROOTFS):

Root filesystem

LSB, FHS: (FileSystem heirache Standard)

/etc,/usr,/var,/root,/home,/dev

/boot: Boot file directory, kernel file (vmlinuz), boot loader (bootloader, grub) are stored in this directory;

/bin: A basic command for all users, a program that cannot be associated to a separate partition, and that is used by OS startup;

/sbin: The basic command of the management class, the program that can not be associated to the independent partition, OS startup;

/lib: Basic shared library files, and kernel module files (/lib/modules);

/LIB64: Dedicated to the storage location of the secondary shared library files on the x86_64 system;

/etc: Configuration file directory (plain text file);

/home/username: General user home directory;

/root: Administrator's home directory;

/media: Portable mobile device mount point;

CDRom

Usb

/MNT: Temporary file system mount point;

/dev: Device files and special file storage locations;

B:block device, random access

C:character device, linear access

/OPT: The installation location of the third-party application;

/SRV: Data used by services running on the system;

/tmp: temporary file storage location;

/usr:universal GKFX, read-only data;

Bin: An application that ensures that the system has full functionality;

Sbin

Lib:

LIB64:

Include:c the header files of the program (header file);

Share: structured independent data, such as Doc, man, etc.;

Local: The installation location of the third-party application;

Bin, Sbin, Lib, lib64, etc, share

/var:variable Data files

Cache: The application caches the data directory;

LIB: Application state information data;

Local: Dedicated to storing variable data for applications under/usr/local;

Lock: Lock file

LOG: Logs directory and files;

OPT: Dedicated to storing variable data for applications under/OPT;

Run: A process-related data in progress, typically used to store a process's PID file;

Spool: Application data pool;

TMP: Saves the temporary data generated between the two reboots of the system;

/proc: A virtual file system for outputting kernel-related process information;

/sys: A virtual file system for outputting information about hardware devices on the current system;

/selinux:security the storage location of information such as enhanced linux,selinux related security policy;

Components of an application on Linux:

Binaries:/bin,/sbin,/usr/bin,/usr/sbin,/usr/local/bin,/usr/local/sbin

Library files:/lib,/lib64,/usr/lib,/usr/lib64,/usr/local/lib,/usr/local/lib64

Configuration files:/etc,/etc/directory,/usr/local/etc

Help files:/usr/share/man,/usr/share/doc,/usr/local/share/man,/usr/local/share/doc

File types under Linux:

-(f): ordinary documents;

d: catalog files;

B: block equipment;

C: Character device;

L: Symbolic link file;

P: Pipeline file;

S: socket file; socket;

[Linux] File System