Linux File System composition

/boot directory:

Kernel files, System bootstrap file save location, storage System current Kernel "general 128M can"

such as: Boot file grub configuration file, etc.

/etc Directory:

System commonly used configuration files, so back up the system when you must back up this directory

Such as: System administrator often need to modify the file, determine the system behavior of the configuration file

/bin,/usr/bin directory:

Store user-used commands [All users can use]

such as: LS,CP

/sbin,/usr/sbin directory:

Save the commands used by the system maintenance [normal user is unavailable, only root is available]

such as: fdisk: Partition

MKFS: Formatting

/lib Directory:

Save the library files required for the system to run, and automatically copy the libraries here when the program is installed.

such as: C language with. A suffix name of the static library file

Dynamic library files with a. so extension

/dev Directory:

Storing device files

such as:/dev/cdrom

/dev/hda

/dev/sdb

/var directory:

Save frequently-changed files, system run-time data

Such as: Log files: Logs

Mail files: Mail

Offline files, scheduled tasks, etc.

/mut directory:

Temporary file system installation point, in order to facilitate the general equipment are mounted to the Mut directory

such as: CD: Mut/cdrom

U disk: MUT/SDB2

/proc directory:

System memory/CPU mapping, storing the current memory image, virtual file system, does not exist on the hard disk

Example: View memory Size: More/proc/meminfo

View Cpu:more/proc/cpuinfo

After the directory is deleted, the reboot will be mapped again.

/tmp directory:

A temporary file that is used to save the system from running, special permissions: Sticky bit t

such as: temporary data when the program is running

/usr directory:

The system is used to save information related to the user, is the largest

Save almost all of the commands, libraries, and manuals page. Similar to the C:\windows directory under Windows, when installing the software, it is customary to install it under the/usr/local directory.

/home directory:

System, the host directory of ordinary users, CD default return to their home directory

/root directory:

In the system, the Superuser's host directory

/lost+found

The check result of the system error is stored, the directory is empty by default

"Most of the other things don't have any important features, many are empty!" 】

"/HOME,/BOOT,/USR can be considered separately when managing file systems"

Linux File System composition