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Steps to check user list under Linux system

Steps to check user list under Linux system

Title: How to view the Linux system user list and specific operation steps The Linux operating system is an open source operating system that is widely used in servers, personal computers and other fields. In Linux systems, user account management is a very important part. Administrators need to check the user list and related information in the system from time to time. This article will introduce the specific steps to view the user list in a Linux system and provide relevant code examples. 1. The basic way to view the user list in the Linux system is as follows:

Feb 26, 2024 pm 02:45 PM
linux 终端 用户列表查看 linux操作系统
Detailed explanation of Linux system log file classification

Detailed explanation of Linux system log file classification

Linux system log files are important files that record various information generated during system operation. By analyzing log files, we can help us understand the operating status, troubleshooting, and performance optimization of the system. This article will deeply explore the classification and functions of Linux system log files, and combine it with specific code examples to help readers better understand. 1. Classification of Linux system log files 1. System log System log is a log file that records important events such as system startup, shutdown, user login, and shutdown. In Linux system

Feb 26, 2024 pm 02:33 PM
linux 分类 系统日志
In a Linux system, how to quickly query disk space usage without the duf command?

In a Linux system, how to quickly query disk space usage without the duf command?

In Linux systems, using the du command is a common way to view disk space usage. However, in some cases, you may encounter a situation where there is no du command, then we can quickly check the disk space usage through other methods. This article describes some alternatives and provides specific code examples. Use the df command. The df command can display the disk space usage of a file system. Through the df command, we can quickly check the space usage of each mount point. Sample code:

Feb 26, 2024 pm 02:03 PM
查看磁盘使用 磁盘空间查询
How to view Linux block device information?

How to view Linux block device information?

How to view block device information in Linux? In Linux systems, block devices refer to devices that store data, such as hard drives, solid-state drives, etc. Understanding block device information is important when performing system administration and troubleshooting. The following will introduce how to view block device information in a Linux system through the command line. 1. Use the lsblk command. lsblk is a command used to list block device information. It can display detailed information about hard disks, partitions, etc. You can view the block device information in the system through the following command: lsbl

Feb 26, 2024 pm 01:45 PM
信息 linux 块设备
Steps: Add new user in Linux system

Steps: Add new user in Linux system

Linux user management: Steps to add new users In Linux systems, administrators can add new users through the command line to provide new users with system access rights. This article details the steps for adding a new user and provides specific code examples. Step 1: Log in to the system with root privileges. First, you need to log in to the Linux system as the root user. The Root user has full access to the system and can perform all operations including user management. Step 2: Create a new user using the following command

Feb 26, 2024 pm 01:45 PM
linux 用户 添加
An in-depth exploration of Linux file search functions

An in-depth exploration of Linux file search functions

To deeply understand the Linux file search function, specific code examples are required. As a popular operating system, Linux's file search function has always been one of the functions frequently used by users. In Linux systems, by using some tools and commands, you can easily find files or directories to meet users' file management needs. Use the find command to find files. The find command is a very commonly used file search command in Linux systems. It can search in a specified directory according to the conditions provided by the user. The specific usage is as follows

Feb 26, 2024 pm 01:33 PM
文件搜索 文件定位
Analysis method of data columns in Linux log files

Analysis method of data columns in Linux log files

Title: In-depth interpretation of different columns of data in Linux log files. In Linux systems, log files are a very important recording tool. They record various information and events generated during system operation and play an important role in system management and troubleshooting. Crucial role. In Linux systems, common log files include syslog, auth.log, kernel.log, etc. The data in these log files records different information according to a certain format, including timestamps, log levels, and process information.

Feb 26, 2024 pm 01:30 PM
列数据解读 日志文件分析 python脚本
A concise guide on how to view Linux block device information

A concise guide on how to view Linux block device information

Linux is an open source operating system widely used in the server field. Linux systems support a variety of hardware devices and provide a wealth of commands and tools to manage these devices. Among them, block devices are an important part of the Linux system and can be used to store data, such as hard drives, SSDs and other devices. This article will introduce how to quickly view block device information in a Linux system and provide specific code examples. 1. Commonly used commands to view block device information: lsblk command: The lsblk command is used to list blocks.

Feb 26, 2024 pm 01:24 PM
linux 查看 块设备
A Deep Dive into SELinux: A Comprehensive Analysis

A Deep Dive into SELinux: A Comprehensive Analysis

What is SELinux? This article explains in detail that SELinux (Security-EnhancedLinux) is a security-enhanced Linux system security extension module designed to improve the security of the Linux operating system. By implementing a Mandatory Access Control (MAC) mechanism, SELinux can limit program access and protect the system from malware and attackers. In this article, we will explain in detail how SELinux works and provide specific code examples to

Feb 26, 2024 pm 01:18 PM
详解 selinux linux操作系统 linux工具
Linux process startup method revealed

Linux process startup method revealed

As an open source operating system, the Linux operating system has a variety of features and functions. Among them, the process startup method is an important aspect in the Linux system. In Linux systems, there are many ways to start a process, including starting through the command line, starting through scripts, starting through services, etc. This article will introduce in detail the common process startup methods in Linux systems and provide specific code examples. 1. Starting the process through the command line. In Linux systems, starting the process through the command line is the most common way.

Feb 26, 2024 pm 01:06 PM
linux 进程 启动 linux操作系统
Linux Operation Guide: SSH Version Verification Tutorial

Linux Operation Guide: SSH Version Verification Tutorial

SSH Version Check Tutorial: Linux Operation Guide SSH (SecureShell) is a network protocol used to provide an encrypted communication channel in the network. It allows secure connection to remote computer systems and transfer of data over unsecured networks. There are different versions of SSH, including SSH1 and SSH2. In this tutorial, we'll cover how to check the SSH version installed on a Linux system and demonstrate some concrete code examples. Step 1: Check if SSH is installed on the Linux system

Feb 26, 2024 pm 01:00 PM
linux ssh 版本检查 系统安装
Linux File Type Color Parsing: Theory and Practice

Linux File Type Color Parsing: Theory and Practice

Linux file type color decoding: Integrating knowledge and action In Linux systems, we often see different color identifications in front of file names or folder names. These color marks actually represent the type or attributes of the file. Through these color marks, we can understand the file information more quickly. In the Linux system, different file types correspond to different color identifiers. Let’s decode the meanings of these color identifiers. Blue: Blue represents the directory. In Linux, a directory is a special file type,

Feb 26, 2024 pm 12:33 PM
解码 文件 颜色
Explore the Five Classifications of Linux User IDs

Explore the Five Classifications of Linux User IDs

Title: In-depth understanding of the five classifications of Linux user IDs In the Linux operating system, each user is assigned a unique user ID (UserID), which is used to identify and manage the user's permissions and access levels. The classification of user IDs is very important for system management and permission control. In this article, we will delve into the five classifications of Linux user IDs and give specific code examples. 1. Real user ID (UserID) The real user ID is the unique identification of the user in the system and is used to distinguish between different users.

Feb 26, 2024 am 11:42 AM
用户id分类细节 linux操作系统 用户权限管理
An in-depth discussion of the three working modes of SELinux

An in-depth discussion of the three working modes of SELinux

Detailed explanation of the three working modes of SELinux SELinux is a mandatory access control (MAC) technology designed to enhance the security of Linux systems. It uses tags to mark resources in the system (such as files, processes, and ports) and defines policies to control process access to these resources. In SELinux, there are three main working modes: forced mode, elastic mode and harmless mode. This article will introduce these three working modes in detail and provide specific code examples. Enforcing mode

Feb 26, 2024 am 11:06 AM
详解 selinux 工作模式

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