Linux System Management-Standalone system management-file system

The basic purpose of the file system

Is the storage resource that represents and organizes the system.

File tree

Inverted tree

Organization of the file tree

/bin, minimum system operability command

/boot, kernel and kernel load the required files

/etc, critical startup files and configuration files

Home directory for the user

Wait a minute

Path name

Absolute path

Relative path

Installing and uninstalling file systems

Mount,umount

/etc/fstab, the information inside let some file system first check and then automatically install to the system.

Uninstalling the file system is a hint to busy (busy), stating that there is a process on the file system that accesses the resource. You can use the FUSER-MV (lsof) mount point to view the usage of the file system.

Types of files

7 Types of files

Ordinary file-

There are no structures, but text files, data files, executable programs, and shared libraries. Understood as a file that holds bytes

Catalog D

Character device file C

Block Device File B

A device file that allows the program to communicate with the system's hardware and peripherals.

A device driver that manages the details of the appropriate device.

A device file is simply a binding point used to communicate with a device driver, not the device driver itself.

Local domain set interface s

Famous Pipe P

For communication between different processes on the same machine

Symbolic link L

File properties

Modify Permissions

Modify the owner and the genus Group

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