File system structure and root directory description:
Rootfs: Root file system
/partition:
[[email protected]/]# Lsbin Dev home lib64 media opt root selinux sys usrboot etc Lib Lost+found mnt Proc Sbin SRV tmp var
650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M02/A3/94/wKioL1mk4wbzO_5MAAAlUixdAyw790.png-wh_500x0-wm_ 3-wmp_4-s_290679102.png "title=" qq picture 20170829114335.png "Width=" 550 "height=" 126 "border=" 0 "hspace=" 0 "vspace=" 0 " Style= "WIDTH:550PX;HEIGHT:126PX;" alt= "Wkiol1mk4wbzo_5maaaluixdayw790.png-wh_50"/>
/bin: Binary executables, user commands such as LS, RM, Echo, grep, awk, etc, normal user also have Execute permission
/boot partition: System boot-related files such as kernel, INITRD, and Grub (bootloader)
/dev Partition: Device files
Block devices: Random access, by data block: Hard disk
character devices: Linear access, per-character access: mouse, monitor
Device number: Main device number (major) and secondary device number (minor)
/etc Partition: The main storage path of the configuration file, such as service startup configuration file,/etc/init.d/mysqld/etc/init.d/httd/etc/init.d/php-fpm
/home partition: User's house directory, each user's home directory is usually/home/user
/lib Partition: library file
Static Library:. A
Dynamic libraries:. So (Shared object)
/lib/modules: kernel module files
/lost+found Partition: This directory is usually empty, and the "homeless" files left behind when the system shuts down are stored here .
/media: mount point directory, Mount Mobile device
/MNT: Mount Additional temporary system
Mount definition: It refers to a device (typically a storage device) attached to an existing Linux directory
/opt Optional Directory, third-party program installation directory
/proc Pseudo-file: Kernel mapping file, storing process (running program) information and kernel information (such as CPU, hard disk partition, memory information, etc. )
/root Partition: Admin home Directory
/sbin: Managing Commands
/sys pseudo-File: Hardware Device-related property mappings
/tmp Temporary file system/var/tmp, General system reboot will not be saved
/selinux partitioning: Used to improve system security
/sys Partition:
/usr read-only files, shared readonly
/usr/bin: non-mandatory ordinary user can execute command
/usr/sbin
/usr/lib:library files for/usr/bin/and/usr/sbin/
/usr/local
/usr/local/bin
/usr/local/sbin
/usr/local/lib
/var: changeable files, such as log files for various services
Root file naming rules:
1, the length can not exceed 255 characters
2. Strictly case-sensitive
3. Cannot use/when file name
This article is from the "Wish_" blog, be sure to keep this source http://itwish.blog.51cto.com/11439802/1960313
Linux Learning Notes-root file system