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- Analyze techniques for querying software package information in Linux systems
- Analysis of the method of proficiently using Linux system to query software package information. In Linux system, the package manager is a very important tool. Through the package manager, software packages can be easily installed, updated, and uninstalled. However, in actual use, sometimes we need to query the detailed information of the software package, such as the version of the software package, installation path, dependencies, etc. This article will introduce how to query software package information in a Linux system through the command line, mainly involving apt, yum and dnf package managers. 1. Use apt package management
- Linux Operation and Maintenance 530 2024-02-24 16:27:27
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- In-depth analysis: the concept and role of SELinux
- SELinux is a security-enhanced Linux system, its full name is Security-EnhancedLinux, which aims to improve the security of the Linux operating system. SELinux is designed to provide more granular access control on top of traditional Linux permission management to protect the security of system resources and data. This article will delve into the definition and functions of SELinux and provide specific code examples to help readers better understand and use SELinux. 1. S
- Linux Operation and Maintenance 1089 2024-02-24 15:57:28
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- Complete Guide to Adding Users in Linux
- Linux is a free and open source operating system that is widely used in servers, embedded devices, personal computers and other fields. In Linux systems, adding new users is a common operation. This article will explain in detail how to use commands to add new users, including specific code examples. 1. Commands to add new users In Linux systems, the command to add new users mainly uses the useradd command. The useradd command is used to create a new user and can specify the user's home directory and other information. Below is userad
- Linux Operation and Maintenance 1401 2024-02-24 15:54:06
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- An in-depth analysis of the functions and working principles of the Linux chage command
- The chage command in the Linux system is a command used to modify the password expiration date of a user account. It can also be used to modify the longest and shortest usable date of the account. This command plays a very important role in managing user account security. It can effectively control the usage period of user passwords and enhance system security. How to use the chage command: The basic syntax of the chage command is: chage [option] user name. For example, to modify the password expiration date of user "testuser", you can use the following command
- Linux Operation and Maintenance 950 2024-02-24 15:48:13
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- Learn how to use the Linux read command and its basic functions
- "Master the basic functions and operating skills of the Linux read command" In the Linux system, the read command is a very useful command for reading data from the standard input. Through the read command, users can enter data interactively or store data in variables for subsequent processing. In this article, we will delve into the basic functions and operating techniques of the read command, and provide specific code examples to help readers better understand and use this command. Basic usage of read command read command
- Linux Operation and Maintenance 1221 2024-02-24 15:15:28
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- Common timestamp attributes in Linux file systems
- Common time attributes in Linux file systems include access time (atime), modification time (mtime), and change time (ctime). These time attributes record different operation times of files or directories, and are very important for file system management and tracking. The following will introduce these three time attributes one by one, with corresponding code examples. Access time (atime) Access time refers to the last time a file or directory was accessed or executed. When the file is read, executed or viewed, the access time is updated.
- Linux Operation and Maintenance 937 2024-02-24 14:36:05
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- What is the method to quickly obtain software package information in Linux system?
- How to quickly obtain information about software packages in a Linux system? In Linux systems, it is a very common requirement to obtain relevant information about software packages. Whether you are viewing information such as the version, description, installation path, or dependencies of a software package, you can do so with some simple commands. Some commonly used methods and specific code examples will be introduced below. Use the dpkg command to view software package information under the Debian system: dpkg is a packaging tool under the Debian system and can be used to install, delete, and query software.
- Linux Operation and Maintenance 550 2024-02-24 14:33:18
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- Briefly understand the techniques for querying software package information in Linux systems
- In Linux systems, querying software package information is a very common and practical operation, especially when installing, uninstalling, and updating software packages. By querying software package information, we can understand important information such as the version, dependencies, and installation paths of the software package, helping us manage the system more efficiently. This article will introduce several ways to easily master querying software package information under Linux systems, and provide specific code examples. Use apt command (for Debian and Ubuntu systems) in Debian and Ubun
- Linux Operation and Maintenance 1543 2024-02-24 10:27:24
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- Guide on how to check the time of a Linux file
- Linux file time viewing guide In the Linux operating system, each file and directory has its owner, permissions, timestamp and other attributes. Among them, the timestamp includes three parts: access time (atime), modification time (mtime) and change time (ctime). These timestamps record the relevant operation time of files. For system administrators and developers, understanding the timestamp information of files can help them better manage files and track file changes. This guide will show you how to view files through the command
- Linux Operation and Maintenance 717 2024-02-24 09:48:06
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- Teach you how to modify Linux user information
- Linux user information modification tutorial The Linux system is a powerful operating system with a wealth of command line tools that can help users easily perform various operations. In Linux, user information includes user name, user ID, user group ID, home directory, default Shell, etc. This information can be modified through the command line. This article will introduce how to modify user information in a Linux system, and provide specific code examples to help readers get started quickly. First, we need to understand several common commands to operate
- Linux Operation and Maintenance 889 2024-02-24 09:18:07
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- How to view the absolute path of a file in Linux
- Displaying the full path of a file in Linux is a very common and useful operation. By displaying the full path of the file, we can more easily locate the file's location in the system and perform file management and operations. In Linux systems, you can display the full path of the current working directory by using the "pwd" command, and display the full path of a specified file by using the "realpath" or "readlink" command. Next, we will explain in detail how to display the full path of a file in Linux and
- Linux Operation and Maintenance 1370 2024-02-24 08:33:23
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- Learn more about how to modify Linux user information
- Title: Detailed explanation of how to modify Linux user information. In the Linux operating system, the management of user information is a very important operation. User information includes user name, user ID, user group, user home directory, user shell, etc. Understanding how to modify user information is crucial for system management. This article will introduce in detail how to modify user information in Linux systems, and attach specific code examples. 1. View user information Before you start modifying user information, you first need to know how to view user information. Can
- Linux Operation and Maintenance 825 2024-02-24 08:18:22
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- The wide range of uses of the Linux read command: Explore multiple application scenarios
- The Linux system is an open source operating system with powerful functions and flexibility, and the read command is one of the very practical commands. This article will explore various application scenarios of the Linuxread command and provide specific code examples to help readers better understand and use this command. 1. Read user input The most common use of the read command is to read user input. The user can input content through the keyboard, and the read command can save these inputs into a variable and then execute them in the script.
- Linux Operation and Maintenance 761 2024-02-24 08:00:18
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- How to check the number of last lines of a file in Linux
- In Linux systems, there are many ways to view the last few lines of a file. The following will introduce several common methods and give specific code examples. Method 1: Use the tail command. The tail command is a very convenient tool that can display the content at the end of the file. You can specify how many lines to display by adding the -n parameter. The following is a sample code: tail-n10filename.txt The above code will display the last 10 lines of the file filename.txt. Can be based on specific
- Linux Operation and Maintenance 1613 2024-02-23 23:54:06
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- Learn more about the usage of Linux chage command
- Detailed explanation of how to use the Linuxchage command. In Linux systems, the chage command is a tool used to change user account and password expiration information. By using the chage command, you can set the password expiration time, modify the account lock date, and view account and password expiration information. This article will introduce in detail how to use the chage command in Linux systems, and provide specific code examples to help users better understand and master this powerful command. 1.chage command basic syntax ch
- Linux Operation and Maintenance 1046 2024-02-23 23:48:26
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