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Common Linux file finding tips

Common Linux file finding tips

Finding files in Linux is a need we often encounter in daily use. Whether we are looking for specific files or files containing specific content, we need to master some common methods. This article will introduce common methods of finding files in Linux, and attach specific code examples for reference. 1. Use the find command. The find command is the most commonly used tool for finding files in Linux systems. Its syntax is: find[path][options][expression][path

Feb 26, 2024 pm 04:21 PM
linux 方法 查找文件
In-depth analysis of Linux PS command

In-depth analysis of Linux PS command

Title: In-depth understanding of the Linux PS command requires specific code examples. In the Linux operating system, the PS (ProcessStatus) command is a common command used to view the status of the current system process. Through the PS command, we can view the process information running in the system, including the PID of the process, occupied resources, running time, etc. This article will introduce the usage of PS command in depth and demonstrate its function through specific code examples. 1. Basic usage of PS command The basic usage of PS command is as follows

Feb 26, 2024 pm 04:18 PM
linux 深入 ps命令 linux操作系统 内存占用
In-depth exploration of the three policy classifications of SELinux

In-depth exploration of the three policy classifications of SELinux

SELinux is a mandatory access control security technology used to enhance the security of Linux operating systems. In SELinux, policies are divided into three main categories: TargetedPolicy, Multiple Policies (MLS/MCSPolicy), and CustomPolicy. These three policy classifications play an important role in the security mechanism of SELinux. This article will introduce these three policies in detail with specific code examples.

Feb 26, 2024 pm 04:03 PM
深入理解 selinux 策略分类
Familiar with the three working modes of SELinux

Familiar with the three working modes of SELinux

SELinux (Security-EnhancedLinux) is a security module that implements Mandatory Access Control (MAC) in Linux systems. It enforces security policies by applying labels to system objects (files, processes, etc.) for more fine-grained access control. SELinux has three working modes: Enforcing, Permissive and Disabled. This article will introduce these three modes in detail and provide specific code examples. 1

Feb 26, 2024 pm 03:27 PM
理解 selinux 工作模式
Analyze and study fields in Linux log files

Analyze and study fields in Linux log files

"Analysis and Research on the Number of Columns in Linux Log Files" In Linux systems, log files are a very important source of information, which can help system administrators monitor system operation, troubleshoot problems, and record key events. In a log file, each row usually contains multiple columns (fields), and different log files may have different column numbers and formats. It is necessary for system administrators to understand how to effectively parse and analyze the number of columns in log files. This article will explore how to achieve this using Linux commands and code examples.

Feb 26, 2024 pm 03:18 PM
linux 日志分析 列数 shell脚本
How to update user information in Linux system

How to update user information in Linux system

How to modify user information in Linux system In Linux system, each user has his or her own user account information, including user name, user ID, group ID, home directory, etc. If you need to modify user information, you can do so through the command line tool. The following will introduce the specific steps and sample code on how to modify user information under the Linux system. Step 1: View the current user information. First we need to confirm the user information to be modified. You can use the following command to view the details of the current user: $id. Step 2: Modify.

Feb 26, 2024 pm 03:09 PM
用户信息修改 修改用户信息
Introducing the usage of PS command in Linux

Introducing the usage of PS command in Linux

Title: In-depth understanding of the Linux PS command: Function introduction and code examples In the Linux operating system, the PS command is a very practical tool that can help users view process information running in the system and monitor the operation of the system. This article will introduce the basic functions and common options of the PS command, and demonstrate how to use the PS command to view and manage processes through specific code examples. 1. Introduction to the PS command The PS command is the abbreviation of ProcessStatus and is used to display information about the processes currently running in the system.

Feb 26, 2024 pm 03:07 PM
进程控制 查看进程 进程信息 linux操作系统 内存占用
How to check the SSH version in Linux system

How to check the SSH version in Linux system

How to check the SSH version in Linux systems SSH (SecureShell) is an encrypted remote connection protocol that is widely used in Linux systems. It is very important to understand the SSH version in the current system, because different versions may have different security vulnerabilities or functional features. In this article, we will introduce how to check the SSH version in a Linux system and provide specific code examples. First, we can check the SSH version in the system through the command line. The following are some commonly used

Feb 26, 2024 pm 03:06 PM
ssh版本检查 ssh版本查询
How to check the disk usage of Linux system?

How to check the disk usage of Linux system?

Title: How to check disk usage in Linux? In Linux systems, checking disk usage is one of the common operations for administrators and users. Understanding disk usage can help users free up disk space, manage files, and improve system performance in a timely manner. This article will introduce how to check disk usage in Linux systems and provide specific code examples. 1. Use the df command. The df command is a commonly used command used to display disk space usage. You can check the disk usage by entering the following command in the terminal

Feb 26, 2024 pm 03:01 PM
- 使用 - linux - 磁盘
Understand the different working modes of SELinux

Understand the different working modes of SELinux

SELinux is a security-enhanced Linux. Its full name is Security-EnhancedLinux, which is a security module of the Linux kernel. It can provide mandatory access control function, through which the security of the system can be better protected. SELinux can effectively prevent malicious programs from abusing system resources by controlling the permissions of processes to access resources. In SELinux, there are three working modes: Enforcing, Permissiv

Feb 26, 2024 pm 03:00 PM
安全策略 强制访问控制 标签安全
Critical Linux MBR: Ensure the system starts properly

Critical Linux MBR: Ensure the system starts properly

LinuxMBR refers to the master boot record (MasterBootRecord) in the operating system, which is the key to ensuring the normal startup of the system. The MBR is usually located in the first sector of the hard disk (sector number 0), and it contains key information such as the boot loader and partition table. If the MBR is damaged or destroyed, the system will not start properly. Therefore, it is very important to understand how MBR works and learn to fix it. Under Linux systems, some tools and commands are usually used to repair MBR, as follows:

Feb 26, 2024 pm 02:46 PM
linux mbr 启动 数据丢失
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

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