Linux FHS Hierarchy Standard

FHS definition:  filesystem hierarchy standard, File system hierarchy standard .rootfs:  root file system ./boot:  the relevant file storage path required for system startup       vmlinuz:   Kernel file .      initrd:     disk impression file, a small Linux kernel file that needs to be loaded when the system starts.       grub (BootLoader):   Boot loader .     /dev:    device file storage path             Block devices:    random access, access to organized data block access .   For example: Disk             character device:  linear access, read by one character input .  for example: keyboard, mouse, monitor             Device Number: Main device number (major) and secondary device number (minor), which is used to indicate the ./etc:      configuration file storage path for different devices/home :     User home Directory/root:     Administrator home directory/lib:      library files             Static Library:.a            Dynamic Library:. SO (shAred object)           /lib/modules:  kernel module file/media:     mount point directory, mobile device ./mnt:      mount point directory, additional temporary file system ./opt:       Optional directory, third-party program installation directory/proc:     pseudo file system, kernel mapping file ./sys:      pseudo file system, Same as Proc. The content, storage and mapping files related to Hardware device properties           block: Block devices            bus:   Bus            dev:   Equipment            firmware:  firmware           fs:   File System            kernel:   cores            module:  Module           power:    Power related content/tmp:     Temporary file system/var:     changeable files            cache:  cache           lock:   File Lock            log:    logs            mail:   User mail Dump location            The run:    process ID number holds the path/bin:      the executable file, the user command. /sbin:     Management Commands           bin,sbin:  Store some system boot-related commands, or executable programs, while the bin,sbin           under/usr The executable file below holds the commands or executables            programs required to provide some basic functionality after the system is started .           /usr:     shared , read-only,  read-only files for global sharing/usr/local:   third-party software installation path, not system required.

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Linux FHS Hierarchy Standard