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- PID file in Linux operating system: management process at a glance
- This article provides an in-depth analysis of the pid file mechanism of the Linux operating system, introduces its role in the entire system, generation principles, management techniques and other important contents, and lists application cases in actual operating environments. 1.What is a pid file? "pid" is the abbreviation of process identifier file, and its purpose is to provide a unique identifier record for started tasks. Such files usually have a ".pid" extension in Linux operating systems. 2. The role of pid files: In the field of facility management and process control, the use of PID (ProcessIDentifier) files is crucial. It can assist administrators at all levels to effectively track and supervise various processes in the system to prevent the duplication of any process.
- LINUX 1418 2024-03-17 08:00:17
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- Huawei launches open source enterprise-level Linux operating system - openEuler
- Recently, Huawei announced the launch of open source enterprise-level Linux operating system-openEuler. This news caused quite a stir in the technology circle. The appearance of openEuler not only draws attention to Huawei's in-depth layout in the open source field, but also arouses the industry's expectations and speculations about this new operating system. First of all, let’s focus on the embedded Linux open source community and the logic behind openEuler. Huawei's choice to launch its own enterprise-level Linux operating system means that it is actively seeking more independent control in areas such as cloud computing and big data. As an open source project, openEuler will provide users with greater customization flexibility, thus better adapting to the needs of various enterprises, and this has also become a
- LINUX 1368 2024-03-17 08:00:16
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- Detailed explanation of linux directory structure
- [root@bogon/]#ls-ltotal94dr-xr-xr-x.2rootroot4096Aug2404:21bindr-xr-xrwx.5rootroot1024Nov1423:40bootdrwxr-xr-x.2rootroot4096Jul142010cgroupdrwxr-xr-x.17rootroot3760Dec1918:25devdrwxr-xr-x.98rootroot4096Dec2018:32etcdrwxr-xr-x.12rootroot4096Sep2900:29
- LINUX 1225 2024-03-16 23:50:22
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![A brief analysis of the files in the /proc/[pid] directory in Linux](https://img.php.cn/upload/article/000/887/227/171058868364028.jpg?x-oss-process=image/resize,m_fill,h_100,w_220)
- A brief analysis of the files in the /proc/[pid] directory in Linux
- The Linux kernel provides a mechanism to access the kernel's internal data structures and change kernel settings at runtime through the proc file system. The proc file system is a pseudo file system that only exists in memory and does not occupy external memory space. It provides an interface for accessing system kernel data in the form of a file system. Users and applications can obtain system information through proc and change certain parameters of the kernel. Since system information, such as processes, changes dynamically, when a user or application reads a proc file, the proc file system dynamically reads the required information from the system kernel and submits it. Not all of the files or subfolders listed below exist in your system, depending on your kernel configuration and
- LINUX 1403 2024-03-16 19:31:12
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- China's first self-developed desktop operating system developer platform officially released
- Good news! Recently, China's first independently developed desktop operating system developer platform - openKylin community, will be released soon! The advent of this platform means that China's software technology can finally get rid of its dependence on the United States and the East, no longer be controlled by others, and no longer suffer from technological blockade. In today's information age, software technology is the core driving development, and the operating system is the cornerstone and platform of the software world. The open source community provides a vast foundation for software development, and powerful software technology in turn promotes the prosperity of the open source community. This is directly related to the country's information security and national security. It is the engine of the construction of Digital China and an important part of building a community with a shared future for mankind. However, the global information technology system is mainly concentrated in the United States, and our
- LINUX 1055 2024-03-16 19:16:16
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- Linux virtual serial port software competition: Which one is more suitable for you?
- This article will conduct a comprehensive evaluation of several important Linux virtual serial port software currently on the market, and provide users with reliable reference data to help them select relevant software products that meet their actual needs. 1. Introduce Linux virtual serial port software: In the embedded and hardware debugging process, virtual serial port software plays a key role, simulating physical serial port devices to facilitate developers to implement debugging and testing. 2. Software 1: SerialPortEmulator is a Linux virtual serial port software with excellent performance and convenient application features. It supports the creation of multi-channel virtual serial ports and has comprehensive configuration functions, covering key parameters such as baud rate, data bits and parity bits. Thanks to this software, we can easily implement various
- LINUX 1419 2024-03-16 17:01:07
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- Linux system administrator teaches you step by step how to create an Oracle user, revealing the details
- As a senior system administrator, I am happy to share with you my recent valuable experience in creating Oracle users on the Linux system platform. As someone with deep database management knowledge and experience, I know the importance of users in this process, so I decided to do this work myself.
- LINUX 1150 2024-03-16 09:30:04
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- Detailed explanation of vue-router instance
- I just recently wrote a company project using vue. It was built using vue-cli. It is considered a medium to large project. I would like to record and share the knowledge points here. I hope it will be helpful to everyone. I will gradually share it in the future. Not much to say. , directly enter the code! ! main.js//TheVuebuildversiontoloadwiththe`import`command//(runtime-onlyorstandalone)hasbeensetinwebpack.base.confwithanalias.importVuefrom'vue'importAppfrom'./App'i
- LINUX 845 2024-03-16 09:28:22
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- Ant puzzle ~ interesting thinking exercise
- Are algorithms important in today’s work? Nowadays, computer science has developed to a relatively advanced stage. It is impossible for one person to learn all the algorithms. When solving specific problems, sometimes it is more necessary to first analyze the problem, then consult the information, think about the design, and even discuss, and finally Then implement it to solve it. Algorithms also have many different branches, which meet different needs and have different scopes of application. The usual "communication" circles are also different, such as "graphics algorithms", "artificial intelligence algorithms", and "distributed algorithms". The basic principles under different branches are also different. The concepts and ways of thinking are different, and the "common sense" needed to analyze problems and understand other people's methods is also different. Under each branch, a large number of new papers and new methods appear every year, and they are constantly accompanied by new needs.
- LINUX 1163 2024-03-16 08:10:03
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- Machine Learning - Getting Started
- Machine learning is a branch of artificial intelligence. The research on artificial intelligence follows a natural and clear path from focusing on "reasoning" to focusing on "knowledge" and then on to "learning". Obviously, machine learning is a way to realize artificial intelligence, that is, using machine learning as a means to solve problems in artificial intelligence. In the past 30 years, machine learning has developed into a multi-field interdisciplinary subject, involving probability theory, statistics, approximation theory, convex analysis, computational complexity theory and other disciplines. Machine learning theory mainly involves the design and analysis of algorithms that allow computers to "learn" automatically. Machine learning algorithms are a type of algorithm that automatically analyze and obtain patterns from data and use the patterns to predict unknown data. Because learning algorithms involve a lot of statistical theory,
- LINUX 773 2024-03-15 20:16:11
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- How to write project experience in Linux interview resume in 2015?
- The article I want to share with you tomorrow is about how to write project experience in your resume when attending the Linux written test. Project experience and work experience are complementary to each other, but compared to work experience, project experience focuses more on showing the job seeker's skill level in a certain professional field (skill level determines the salary level). Therefore, when hiring for technical positions urgently, more emphasis is placed on project experience. There are routines for project introduction. During the written test, you must plan the projects in your resume. Let’s go up and take a look! 1. How to introduce the projects in the resume. When we explain the projects to the written examiner, the explanation of the projects must focus on the following aspects: §Project name;§Project time (One thing to note here: don’t be too tight on time. Instead, the early conception, needs analysis, and preparation should be
- LINUX 551 2024-03-15 14:40:03
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- Regarding the front-end graduation design, the senior has something to say
- :hover When the mouse is hovering over a label with this attribute, a change will occur, so that the current label has the attribute described by hover. The method and selection of the Web page to submit data to the background. As we all know, the Web front-end page is mainly composed of HTML/CSS/Javascript. When you want to pass When interacting with users to implement various functions, it is necessary to submit some data or operations to the background. In the Web world, various implementations are dazzling, but ultimately, there are no more than three methods, which are also determined by the front-end script, browser and back-end interaction rules. 1. Submit through a form. This is the most traditional submission method supported by HTML. You need to create a form, and then the form contains various types of form elements, and there is also a submit button. Through the submit button
- LINUX 1007 2024-03-15 11:30:16
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- Linux server construction: Choose a high-quality distribution and quickly configure Apache, MySQL, and PHP
- 1. Choose a suitable Linux distribution. Choose a high-quality Linux distribution that is proven reliable and has strong community support, such as CentOS or Ubuntu, for web server preparation, which will help you obtain stable performance. 2. Install necessary software. In order to efficiently build Web services, relevant software must be installed in advance. It is particularly important to quickly complete the configuration of Apache, MySQL, PHP and other modules through the command line. Please follow these steps: Run the command sudoapt-getinstallapache2mysql-serverphp to complete the installation of the required software. 3. Configure ApacheApache is a web server widely used around the world.
- LINUX 629 2024-03-15 11:07:02
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- A must-read for Linux system administrators! File transfer SCP vs SFTP, which one do you choose?
- As a senior system administrator, I have only used Linux for daily operations for many years. However, I recently encountered a problem that interests me. To transfer files from Linux to Linux, the files need to be transferred from two devices. It seems easy to operate, but in fact there are quite a lot of complications. I would like to share my gains and losses from this experience with all readers. 1. Preparation work: Ensure that the network connection is stable. Before transferring files, be sure to confirm that the network connectivity between the two Linux servers is in good condition. This can be detected with the help of the ping command. Execute the following command on the console: ping. If you can receive a response, the network connection is normal. 2. Choose the appropriate transmission tool: SCPvsSFTP In Linux systems, there are two main
- LINUX 560 2024-03-15 09:52:19
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- String processing exercises~
- The code is as follows: Make sure the first letter of each word in the string is uppercase and the rest is lowercase. The code is as follows: functiontitleCase(str){//Convert the string into an array and lowercase it vararr=str.toLowerCase().split("");for(vari=0;i
- LINUX 1002 2024-03-15 09:13:14
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