FHS (Filesystem Hierarchy Standard)
Boot/boot system-related files such as kernel Vmlinuz, INITRD, and Grub
/dev Device file, access entry for device, device number (main device number major and secondary device number minor)
IO device is divided into: 1, block device random access data block
2, character device sequential read, linear access, by character units
/etc configuration file
/lib the required library files for the system to start. static libraries (. A) and dynamic libraries (. So)
/bin the user commands that are required for the system to start, the executable file.
/sbin administrative commands required to start the system
/proc pseudo file system, kernel mapping file.
/sys pseudo file system, hardware mapping file
/media mount point, more for mobile devices
/MNT mount point, additional temporary file system
/root Root's home directory
Home directory for/House users
/var variable file, related to the system operation process
/tmp temporary files, so users have to create permissions, but can only delete the files they created, automatically clean up every month.
/opt Optional Directory, early for third-party software installation.
/USR Unix software resource global shared read-only directory
The user executable file that the/usr/bin system must rely on to provide services
The/usr/sbin system provides services that must rely on management to execute files
Library files that the/usr/lib system must rely on to provide services
/usr/local location of third-party software Installation
/usr/local/bin
/usr/local/sbin
/usr/local/lib
Linux basic 6 File system directory structure standard