Basic structure analysis of Linux file system

Linux operating system uses the concept of file system to manage data and resources. The file system is a system in the operating system. Software for managing file organization and access on storage devices. In the Linux system, the file system is a hierarchical structure composed of several levels of directories. Files are organized through directories to achieve file management and access. This article will introduce the basic structure of the Linux file system and further analyze it through specific code examples.

1. The hierarchical structure of the Linux file system

In the Linux system, the file system uses a tree structure to organize files and directories. The tree structure starts from the root directory/, with multiple subdirectories connected below, and each subdirectory can contain more subdirectories or files. In the Linux system, everything is a file, including directories, which are also special files, so the entire file system can be regarded as a large directory tree.

The following is the basic directory structure of the Linux file system:

• /: Root directory, the starting point of all files and directories in the system.
• /bin: Binary file that stores system commands.
• /boot: Contains various files required to start the Linux system.
• /home: Stores the user's home directory.
• /etc: Stores system configuration files.
• /usr: Stores applications and files.
• /var: Store changed files, such as log files, etc.
• /tmp: Temporary file directory.
• /dev: Device file directory, used to communicate with hardware devices.
• /proc: Virtual file system containing kernel and process information.

2. Specific code examples for Linux file systems

Create directory

You can create a directory in the Linux system through themkdircommand, for example Create a directory namedexamplein the user's home directory:

mkdir ~/example

Create the file

You can usetouch Thecommand creates a file in the Linux system, for example, create a text file namedtest.txtin theexampledirectory:

touch ~/example/ test.txt

Display directory content

You can use thelscommand to display the files and subdirectories in the directory, such as viewing the files in theexampledirectory ：

ls ~/example

Move files

You can use themvcommand to move files or rename files, for example,test. txtMove to the/tmpdirectory:

mv ~/example/test.txt /tmp

Delete files or directories

Can be usedrmCommand to delete files or directories, such as deletingtest.txtfiles:

rm ~/example/test.txt

Conclusion

Through the above introduction and code examples, we can better understand the basic structure and operation methods of the Linux file system. In practical applications, proficiency in the relevant commands and operations of the file system will help improve work efficiency and file management capabilities. I hope this article can help readers gain a deeper understanding and application of the Linux file system.

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