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List of the directory of this article:

• 1, What are the commonly used file systems supported by the Linux operating system?
• 2, Brief introduction to the file system directory structure of Linux
• 3, linux file linux file operating system< /Li>
• 4
  、 How does Linux extend the XFS file system?
• 5, What is Linux file system, what are the commonly used file systems in Linux

What are the commonly used file systems supported by the Linux operating system?

So the Linux system kernel can support more than ten file system types, such as Btrfs, JFS, ReiserFS, ext, extextextISO9660, XFS, Minx, MSDOS, UMSDOS, VFAT, NTFS, HPFS, NFS, SMB, SysV, PROC, etc.

The file systems we commonly use in Linux are mainly extext2 and reiserfs. The Linux operating system uses the virtual file system (VFS) up and user process files to access the system call interface, down and the implementation interface of different file systems. VFS shields the implementation details of specific files and provides a unified operation interface.

What is the default file system of linux? At present, the default file system used by the Linux distribution is "ext4". EXT4 is a fourth-generation extension file.The system is the log file system under the Linux system and the successor version of the ext3 file system.

EXT: The first file system specially designed for the Linux kernel. The maximum limit for a single file: unknown. The file system supports a maximum capacity of 2GB.

The file systems we commonly use in Linux are mainly extext2 and reiserfs.

The file system is the method and data structure used by the operating system to clarify the files on the storage device (commonly disks, and there are also NANDFlash-based solid-state drives) or partitions; that is, the method of organizing files on the storage device. The software institution responsible for managing and storing file information in the operating system is called the file management system, or file system for short.

Brief introduction to the directory structure of Linux's file system

The file system is used to organize and arrange file access, so it is visible. In Linux, we can pass l S and other tools to view its structure. In the Linux system, we see all tree structures; for example, the operating system is installed in a file system, and it performs a tree structure starting from /.

Let's first check the standard directory under the Linux system /bin The commands required by the basic system are in this directory, such as ls, cp, etc., which are all executable files in this directory.

/boot is used to store the files necessary for Linux startup, that is, the content of the boot partition we established./Dev is used to store the device files of the system. /Etc is used to store various configuration files of the system. /Home is used to store the main directory of each ordinary user in the system. /Lib is used to store system shared library files.

, linux file structure File structure is the organization method of storing files on disks and other storage devices. It is mainly reflected in the organization of files and directories. The directory provides a convenient and effective way to manage files.

/: Root directory, generally only stores the directory under the root directory, do not store files, /etc, /bin, /dev, /lib, /sbin and the root directory should be placed in the same partition /bin: /usr/bin: the directory of executable binary files, as usual The commands used are ls, tar, mv, cat, etc.

Directory Block In Linux, directory is also a kind of file. Opening the directory is actually opening the directory file. The structure of the directory file is very simple, which is a list of a series of directory items (dirent).

linux file linux file operating system

Linux file system generally consists of four main parts: kernel, Shell, file structure and utilities. ( 1) The kernel is the heart of the system, which is the core program that runs programs and manages hardware devices such as disks and printers. (2) Shell is the user interface of the system, which provides an interface for users to interact with the kernel.

The Linux operating system uses the virtual file system (VFS) to access the system call interface upstream and user process files, and the implementation interface of different file systems downwards. VFS shields the implementation details of specific files and provides a unified operation interface.

Files in the Linux file system are a collection of data. The file system contains not only the data in the file but also the structure of the file system. The files, directories, soft connections and file protection information seen by all Linux users and programs are stored in it.

For example, Btrfs, JFS, ReiserFS, ext, extextextISO9660, XFS, Minx, MSDOS, UMSDOS,VFAT, NTFS, HPFS, NFS, SMB, SysV, PROC, etc.

one. Linux kernel The kernel is the core of the operating system, with many of the most basic functions, such as virtual memory, multitasking, shared library, requirement loading, executable program and TCP/IP network functions.

The Linux file system security model ensures that users can only access their own files, but not other users' files or the operating system itself. The last component is the software needed to realize all these functions. Linux uses two-layer software to improve the efficiency of the system and programmers.

How does Linux extend the XFS file system?

1. It should be noted that the current xfs is limited by the linux memory page. In the x86 version, the block size of the file system can only be 4K. In addition, the XFS file system can be mounted in different ways, that is, it allows the file system to be loaded by reading and reading and writing.

2. Expand the file system. Because the xfs partition for CentOS is installed, the command xfs_growfs is used to expand the file system size.

3. First of all, you need to install the XFS system tool set, which allows you to perform many XFS-related management tasks.

4. The example command represents the /dev/vda1 partition file system of the expanded system disk (exT4 format) Note: If you are using the xfs file system, run the xfs_growfs /dev/vda1 command to expand the file system.

What is Linux file system, Li NowX What are the commonly used file systems?

The files in the Linux file system are a collection of data. The file system not only contains the data in the file, but also the structure of the file system. The files, directories, soft connections and file protection information seen by all Linux users and programs are stored. Stored in it.

The file system is the method and data structure used by the operating system to clarify the files on the storage device (commonly disks, and there are also NANDFlash-based solid-state drives) or partitions; that is, the method of organizing files on the storage device. The software institution responsible for managing and storing file information in the operating system is called the file management system, or file system for short.

ext is the first file system specially designed for Linux and made for the Linux kernel.Maximum limit for a single file: unknown; the file system supports a maximum capacity of 2GB. Ext2 is designed by Rémy Card to replace ext, which is the file system used by the LINUX kernel.