File systems for Linux

File systems for Linux:
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/ Usr/local applications store variable data;
            Lock: Lock file
             log: Logs directory and files;
             OPT: Dedicated to storing variable data for applications under/OPT;
             run: Process-related data in progress; The PID file that is typically used to store the process;
             Spool: Application data pool;
            tmp: Save temporary data generated between 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;

File systems for Linux