current location：Home > Technical Articles > System Tutorial > LINUX
- Direction：
- All web3.0 Backend Development Web Front-end Database Operation and Maintenance Development Tools PHP Framework Daily Programming WeChat Applet Common Problem Other Tech CMS Tutorial Java System Tutorial Computer Tutorials Hardware Tutorial Mobile Tutorial Software Tutorial Mobile Game Tutorial
- Classify：
-
- Teach you how to write execution commands/scripts when Linux starts or restarts
- Sometimes you may need to run certain commands or scripts on reboot or every time the system starts. How do we do this? In this article we discuss this. We will use two methods to describe how to restart or execute commands and scripts when the system starts on CentOS/RHEL and Ubuntu systems. Both methods passed the test. Method 1 – Using rc.local This method uses the rc.local file in /etc/ to execute scripts and commands at startup. We add a line to the file to execute the script so that every time the system is started, the script will be executed. But we first need to add execution permissions to /etc/rc.local, $sudochmod+x/etc/r
- LINUX 620 2024-03-02 11:30:39
-
- Analysis of enterprise security management platform under big data
- 1. Introduction The current field of computer network and information security is facing a new challenge. On the one hand, with the advent of the era of big data and cloud computing, security issues are becoming a big data issue. Networks and information systems of enterprises and organizations are generating large amounts of security data every day, and the speed of generation is getting faster and faster. On the other hand, the cyberspace security situation faced by countries, enterprises and organizations is severe, and the attacks and threats that need to be dealt with are becoming increasingly complex. These threats are characterized by strong concealment, long incubation period, and strong persistence. In the face of these new challenges, the limitations of traditional enterprise security management platforms have been fully exposed, mainly reflected in the following aspects: 1. Processing of massive data Enterprise security management platform management involves various security equipment and network equipment in the enterprise network
- LINUX 823 2024-03-02 11:10:45
-
- Senior Qt engineers teach you how to package Qt programs in Linux environment and easily solve running problems
- I am a senior Qt technical engineer who has been committed to the development and launch of Qt applications in the Linux environment for many years. Here, I am honored to answer various related questions and look forward to answering your doubts. 1. How to package Qt program in Linux environment? The first task is to ensure that the required Qt development platform and its related dependencies have been set up correctly. Then, create a Makefile by using the qmake command, and execute the program compilation process using the make command. Finally, use the corresponding packaging tool configured in the Linux operating system (such as deb or rpm, etc.) to compress the program into an executable file or generate a complete installation package. Why does the Qt application developed by me not work under some Linux operating systems?
- LINUX 1349 2024-03-02 10:04:29
-
- (Daily question) Solution ideas for batch execution of mysql database
- 1. Overview of application scenarios: Many mysql files need to be executed in batches. It is too time-consuming to execute the sql files of the mysql database one by one. Debugging environment: local windows 10, the database to be executed is on the centos server in the LAN. Mysql needs to be installed locally, and my version is mysql5.7. MYSQL download: After downloading and installing the Linux environment variables, after adding the path to the environment variables, the mysql command used previously can be used. 1. Check whether the windows command line supports the mysql command. Use the command line to log in to mysql in cmd. If it prompts "not an internal or external command", you need to configure the image.png and install the mysql directory.
- LINUX 647 2024-03-02 09:31:18
-
- How to check the number of partitions in Linux
- Linux is a widely used operating system. It is very important for system administrators or developers to know how to check the number of partitions. In Linux systems, you can use different commands to check the number of partitions. Next, we will introduce some common methods and give specific code examples. 1. Use the fdisk command. fdisk is a tool used to process disk partitions. You can use the fdisk command to view all disk and partition information in the system. The following is using fdisk
- LINUX 1055 2024-03-02 08:45:03
-
- How to query the number of partitions in Linux system
- How to query the number of partitions in a Linux system requires specific code examples. Linux is a widely used operating system with strong flexibility and customizability. In Linux systems, partitioning a hard disk is a common operation. Different partitions can be used to store different types of data or install different operating systems. Therefore, it is very important to know how to query the number of partitions in the system. The following will introduce how to query the number of partitions in a Linux system and provide specific code examples. 1.Use
- LINUX 937 2024-03-01 17:39:04
-
- How to check the number of partitions in a Linux system
- How to check the number of partitions in Linux systems In Linux systems, we can check the number of partitions that already exist in the system through commands. Checking the number of partitions is very important for system management and monitoring, and can help us better understand the storage structure and usage of the system. The following is a specific method to check the number of partitions in a Linux system, as well as the corresponding code example: Use the fdisk command to check the number of partitions. fdisk is a command line tool used to manage disk partitions. In Linux systems,
- LINUX 1178 2024-03-01 16:36:03
-
- Linux Secrets Revealed: Complete Guide to Downloading, Installing, and Version Selection
- Question 1: How to obtain the official download address of Linux system? Answer: In order to find the official download link of Linux, you can visit its website () or the Linux community site () to download. Question 2: What mainstream Linux distributions are available for download? Answer: The current popular Linux distributions such as Ubuntu, Debian, Fedora, CentOS and ArchLinux have their own characteristics and can meet the different needs of various users. It is recommended that you select the appropriate version to download, install and use based on your actual needs. Question 3: How to determine the required Linux version? When choosing a Linux version, you need to consider your own needs and skill level. New to Linux
- LINUX 781 2024-03-01 13:43:55
-
- What should I do if deepin v20 cannot start after installation? What should I do if deepinv20 cannot start?
- Recently, someone encountered the problem of being unable to start when using deepinv20. Every time the computer is turned on and the system is entered, the error code interface as shown in the picture will appear. I don’t know how to solve it. At this time, we can try to switch the kernel or run the Linux command line Add content to solve the problem. What to do if deepinv20 cannot start: Method 1: 1. If we use a new computer, it may not be compatible with the old version of deepin kernel. 2. At this time, we can try to replace the latest system kernel, or directly upgrade the system version to solve the problem. Method 2: 1. Restart the computer and press "F1" during boot to enter the bios settings. 2. Then under the boot option, find “se
- LINUX 945 2024-03-01 11:55:05
-
- Steps to check the number of Linux system partitions
- Steps to Check the Number of Linux System Partitions The Linux system is an open source operating system that is widely used in servers, embedded devices and other fields. In Linux systems, partitioning is the operation of dividing a disk into several logical parts. How to check the number of partitions in a Linux system? Specific steps and code examples are described below. The steps are as follows: Open the terminal of the Linux system. You can use the shortcut key Ctrl+Alt+T to open the terminal. Enter the following command to view the current partition status of the system: sud
- LINUX 1117 2024-03-01 11:06:04
-
- How to confirm the number of partitions in Linux system
- Determining the number of partitions in a Linux system is a common operation and can be confirmed in several ways. This article will introduce several commonly used methods and provide specific code examples. Use the fdisk command: fdisk is a commonly used partition management tool that can be used to view the system’s disk partition information. You can use the following command to list the disk partitions of the current system: sudofdisk-l After executing the above command, the system will list the detailed partition information of all disks, including partition size, file system
- LINUX 1185 2024-03-01 10:51:04
-
- Upgrade as soon as possible! Ubuntu 22.10 will end support on the 20th of next month
- Canonical announced today that the Ubuntu 22.10 (Kinetic Kudu) operating system version will stop supporting on July 20, 2023, urging users to upgrade to the Ubuntu 23.04 (Lunar Lobster) update as soon as possible. Note: Canonical released the Ubuntu 22.10 release on October 20, 2022. Since this version is not a long-term support (LTS) version, its lifespan is only 9 months. Canonical has issued a reminder one month in advance, recommending users to upgrade to a newer version as soon as possible. After July 20, Canonical will no longer push software and security updates to Ubuntu 22.10 users.
- LINUX 1178 2024-03-01 09:31:05
-
- (Live broadcast preview) How many steps does a programmer take to counterattack the CEO? library system
- [Live broadcast preview] How many steps does a programmer take to counterattack the CEO? The DocHub library system is a library solution developed and implemented using the Beego framework of the Go language. It is open sourced using the business-friendly Apache2.0 open source contract and supports online reading of office documents, PDF documents, TXT, EPUB, MOBI and other format documents. and browse. Upgrade log 1. OSS storage code encapsulation optimization 2. Redesign the login page, the previous login page is really ugly 3. Optimize the default images such as user avatars and document covers. When loading images, use onerrorlinuxqq directly on the back end, no longer on the front end. Query whether the image in OSS exists and return the default image if it does not exist, which is convenient for saving OSS.
- LINUX 1028 2024-03-01 08:46:46
-
- How to automatically shut down and boot up a linux system
- Don't be an energy waster. If your computers don't need to be on, turn them off. For convenience and computer geek reasons, you can configure your Linux computer to automatically wake up and shut down. Valuable system running time Sometimes some computers need to be turned on all the time. This situation is allowed as long as the computer running time is not exceeded. Some people pride themselves on keeping their computers up and running for long periods of time, and now we have kernel hotfixes that only require a machine shutdown if a hardware failure occurs. What I think is more practical is to save power by reducing wear and tear on moving parts and shutting down the machine when it is not needed. For example, you can wake up the backup server within a specified time and execute
- LINUX 811 2024-03-01 08:00:24
-
- Detailed explanation of how to switch between Linux user mode and kernel mode
- User mode kernel mode is the state switching of the user program during running; when the user program encounters the application for external resources during operation, such as when the program needs to access: disk, memory allocation, network card, sound card, or even the motherboard LED indicator, it Switching from user mode to kernel mode will occur. For example, reading and writing files: open/read/write will switch from user mode to kernel mode; for example, applying for memory: C language: malloc/java language new. Every object needs to apply for memory space. ; Including select/poll/epoll, they are all system calls; the switching method is to switch from user mode to kernel mode. There are generally three ways: system calls, exceptions, and interrupts; system calls include processes, files, devices, information, communications, etc.
- LINUX 788 2024-02-29 21:46:06
Recommended Articles
Tool Recommendations
jQuery enterprise message form contact code
jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29
HTML5 MP3 music box playback effects
HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.
Player special effects
2024-02-29
HTML5 cool particle animation navigation menu special effects
HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29
jQuery visual form drag and drop editing code
jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29
Organic fruit and vegetable supplier web template Bootstrap5
An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03
Bootstrap3 multifunctional data information background management responsive web page template-Novus
Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02
Real estate resource service platform web page template Bootstrap5
Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02
Simple resume information web template Bootstrap4
Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02
Cute summer elements vector material (EPS PNG)
This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09
Four red 2023 graduation badges vector material (AI EPS PNG)
This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29
Singing bird and cart filled with flowers design spring banner vector material (AI EPS)
This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29
Golden graduation cap vector material (EPS PNG)
This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27
Home Decor Cleaning and Repair Service Company Website Template
Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09
Fresh color personal resume guide page template
Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29
Designer Creative Job Resume Web Template
Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
Modern engineering construction company website template
The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28
