/the following file
/boot: System startup related files: such as kernel, INITTRD, and MBR grub
/dev: Device files:
Block devices: Random access, data blocks such as: USB
Character Devices: Linear access, in terms of characters such as: mouse, keys, monitors, etc.
Device number: Main device number and secondary device number
/etc: Configuration file directory
/home: User's directory/home/username ~
/root: System Administrator Home Directory--the production process without administrator login.
/lib: Library
/lib/modules: Kernel module
Static Library:. A
Dynamic library:. dll (Windows). So shared object shared libraries can save memory usage significantly.
Dynamic compilation, static compilation.
Lost/found
/media: Hang in the point directory, generally hang on the mobile device USB disc, etc.
/mnt: Hangs at the point, additional temporary file system. Of course, it can be hung in general.
/misc Miscellaneous
/OPT: Directory of early installation software for the optional directory system. The previous third-party program directory.
/proc: The pseudo file system boot is not empty, the kernel mapping file. System tuning is used to
/sys: Pseudo file system, the system is not empty after boot, the property mapping file associated with the hardware device. System tuning is used to
/tmp:/var/tmp temporary files for one months are usually cleared automatically. Everyone can create each person and only delete their own files
/var: changeable files, such as logs, mails, caches.
/bin: Executable file, user command.
/sbin: Manage Commands.
/usr: read-only file shared globally, read-only
/usr/bin
/usr/sbin
/usr/lib
Third-party software
/usr/local:
/usr/local/bin
/usr/local/sbin
/usr/local/lib
/USR/LOCAL/SRC: Store third-party installers.
Linux system file names are strictly case sensitive.
Centos (Linux) root file system