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- Quickly understand the subdirectories under the current directory in Linux
- As a common operating system, Linux is widely used in servers, embedded devices and other fields. In Linux systems, we often need to view the subdirectories under the current directory and their detailed information. This article will introduce how to quickly understand the subdirectories in the current directory of Linux and give specific code examples. First, we need to open a terminal and enter the directory where we want to view the subdirectory. You can use the following command to view the path of the current directory: pwd Then, use the following command to list all the files in the current directory.
- Linux Operation and Maintenance 970 2024-03-01 16:15:03
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- Investigation and response to excessive CPU and Sys usage in Linux systems
- Title: Investigation and response to high CPU and Sys usage in Linux systems In Linux systems, high CPU and Sys usage is a common problem that may affect the performance and stability of the system. This article will introduce how to diagnose and deal with the problem of high CPU and Sys usage, and give specific code examples. Problem Analysis: Excessive CPU usage may be due to a process in the system consuming too many computing resources, causing the system load to be too high. High Sys usage may be due to frequent system calls or kernel modules.
- Linux Operation and Maintenance 1128 2024-03-01 16:00:06
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- How to use Linux DTS to optimize system performance?
- Title: How to use LinuxDTS to optimize system performance? In Linux systems, Device Tree Source (DTS) is widely used to describe hardware device information, including peripherals, buses, interrupts, etc. By optimizing DTS, system performance and power consumption efficiency can be improved. This article will introduce how to use LinuxDTS for optimization and provide some specific code examples. 1. Understand that DTSDTS is a data structure that describes hardware device information, usually with .d
- Linux Operation and Maintenance 1050 2024-03-01 15:48:04
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- Analyze the role and operating mechanism of the Linux linkwatch process
- The role and operating mechanism of the Linux linkwatch process In the Linux system, the linkwatch process is a daemon process responsible for monitoring the network connection status. Its main function is to perform corresponding operations when the network interface status changes, that is, when it is connected or disconnected. The linkwatch process realizes real-time monitoring of network connections by monitoring network interface status changes, and makes corresponding processing based on status changes. The role of the linkwatch process: monitors network connection status: lin
- Linux Operation and Maintenance 910 2024-03-01 15:33:04
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- Understand the causes of abnormal resource usage such as CPU and Sys in Linux
- In the process of using the Linux operating system, we often encounter abnormal resource usage such as CPU and Sys, which brings challenges to the stability and performance of the system. In order to better understand the reasons for these abnormal occupations, we need to delve into the corresponding principles and describe them through specific code examples. Next, we will use a simple example to illustrate the reasons that may cause abnormal resource usage such as CPU and Sys in Linux. In Linux systems, the top command is a commonly used tool that can dynamically display the system
- Linux Operation and Maintenance 1454 2024-03-01 15:15:04
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- In-depth exploration of the functions and implementation of the Linux linkwatch process
- Due to length restrictions, a full article of 1,500 words cannot be provided. The following is a summary of the main content: Title: In-depth exploration of the functions and implementation of the Linux linkwatch process. In the Linux system, the linkwatch process is a very important kernel thread, which is mainly responsible for monitoring changes in the status of the network interface. When the network interface status changes, the linkwatch process will receive the corresponding notification and handle it accordingly to ensure the stability and reliability of the system network. linkwat
- Linux Operation and Maintenance 538 2024-03-01 14:30:05
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- 检测Linux系统中端口是否被占用的技巧
- 在Linux系统中，要检测某个端口是否被占用，可以通过使用一些命令来实现。下面将介绍一些技巧以及具体的代码示例来帮助你检测端口是否被占用。一、使用netstat命令netstat是一个用来显示网络连接、路由表和网络接口等信息的命令。通过netstat命令，可以方便地查看系统中监听的端口以及对应的进程。首先打开终端，输入以下命令来查看当前系统中所有已占用的端口
- Linux Operation and Maintenance 393 2024-03-01 14:14:10
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- 如何在Linux中查看当前目录下的子目录？
- 如何在Linux中查看当前目录下的子目录？在Linux系统中，我们经常需要查看当前目录下的子目录，以便了解当前工作目录的结构和内容。下面将介绍几种方法来实现这一操作，同时附上具体的代码示例。方法一：使用ls命令最简单的方法是使用ls命令，通过指定参数-l查看详细列表，其中子目录以d开头表示。具体操作如下：ls-l示例输出：drwxr-xr-x2user
- Linux Operation and Maintenance 304 2024-03-01 14:09:38
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- Tutorial on accurately deleting lines at the end of files in Linux
- In Linux systems, sometimes we need to perform precise operations on text files, such as deleting the last line of the file. This article explains how to use command line tools to achieve this, including specific code examples. First, we need to use a powerful and flexible text processing tool-sed. sed is a stream editor that can process and edit text on the command line. We can use sed command to delete the last line of the file. Suppose we have a text file example.txt that contains multiple
- Linux Operation and Maintenance 703 2024-03-01 14:06:03
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- How to check port occupancy in Linux system
- Title: Methods and specific code examples for checking port occupancy in Linux systems. In Linux systems, it is often necessary to check the occupancy of each port in the current system in order to troubleshoot problems or perform port management in a timely manner. This article will introduce several commonly used methods to check port occupancy, and attach specific code examples so that readers can easily apply these methods: 1. Use the netstat command netstat is a tool used to display network connections, routing tables, and network interfaces. Information command tool. by netst
- Linux Operation and Maintenance 754 2024-03-01 13:21:04
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- Explore the purpose and importance of the Linux linkwatch process
- Explore the purpose and importance of the Linux Linkwatch process. In the Linux system, Linkwatch is an important process that is responsible for monitoring changes in network links and processing them accordingly. The existence of the Linkwatch process can help the system detect network link changes in a timely manner, such as network card disconnection or connection, IP address changes, etc., thus improving the network stability and reliability of the system. This article will delve into the purpose and use of the LinuxLinkwatch process
- Linux Operation and Maintenance 787 2024-03-01 13:12:04
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- A practical method to delete data at the end of a file in Linux
- Title: Practical method for deleting file tail data in Linux. In Linux systems, you often encounter situations where you need to delete file tail data, especially when there is some invalid or unnecessary data in the file. This article will introduce several practical methods to delete file tail data, and provide specific code examples to help readers quickly implement them. Method 1: Use the truncate command. Truncate is a command used to truncate the file size. It can truncate the file to a specific length. By specifying the length of the file to truncate, you can
- Linux Operation and Maintenance 593 2024-03-01 13:03:04
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- How to efficiently delete the content at the end of a file in Linux
- Linux is an open source operating system widely used in server environments and development work. In the daily use of Linux, we often encounter situations where we need to delete the content at the end of a file, such as clearing log files, removing redundant data, etc. This article will introduce how to efficiently delete the content at the end of a file in Linux and provide specific code examples. In Linux, we can use some commands and techniques to delete the content at the end of the file. Two common methods will be introduced below. method one
- Linux Operation and Maintenance 1487 2024-03-01 12:48:03
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- How to check the number of telnet processes in Linux system?
- Checking the number of telnet processes in a Linux system is a very common operation and can be achieved through some simple commands. The following is a specific code example: How to check the number of telnet processes in a Linux system? In Linux systems, you can use the ps command combined with the grep command to check the number of telnet processes. The following are the specific steps: Open a terminal and enter the following command to view the number of telnet processes: psaux|greptelnet|
- Linux Operation and Maintenance 662 2024-03-01 12:39:04
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- Introduction to how to view subdirectories of the current directory in Linux
- Linux is a widely used operating system, one of its advantages is that it is powerful and highly flexible. In Linux systems, we often need to view the contents of the current directory and its subdirectories in order to understand the structure and organization of files. This article will introduce several methods of viewing subdirectories of the current directory in Linux systems, and attach specific code examples. I hope it will be helpful to beginners. Method 1: Use the ls command to view subdirectories of the current directory. In Linux systems, the ls command is one of the most commonly used commands to view files and directories.
- Linux Operation and Maintenance 885 2024-03-01 12:33:04
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