1. Common Linux Commands and Their Meanings pwd: print work directory, prints the current directory and displays the absolute path of the current working directory. ps: process status, similar to the Windows Task Manager, commonly used parameters -auxf, ps -auxf are used to display process status. df: disk free, displays information about available disk space … Read more
Table of Contents Check if the kernel supports quotas Check if the mount properties of the specified partition meet the conditions quotacheck generates configuration files for users and groups edquota edits the quota file to set specified limit sizes Start quota management Stop quota management quota view quota information for specified users and groups repquota … Read more
Learning Linux Shell commands is a gradual process. Beginners can start with basic commands and gradually master scripting and system management. During the learning process, it is recommended to practice hands-on and refer to online documentation and community resources. At the same time, as technology continues to evolve, Linux is also constantly updating. Maintaining a … Read more
1. Introduction As of April 20, 2025, the latest version of MySQL is 9.2.0, which I have not specifically studied. New versions always come with some new features, and those interested can check the official website for more information. Different versions can affect the execution of certain statements; for example, there are significant differences between … Read more
The design philosophy of “everything is a file” is commendable, as it abstracts hardware and processes into files for unified operations. However, this approach becomes less effective in scenarios requiring bidirectional communication, such as network communication, where operating sockets through file read/write operations feels awkward. Windows’ “everything is a handle” is more flexible, as a … Read more
Kyber – Throughput Priority The Kyber scheduler is designed specifically for modern high-performance storage devices. Historically, the ultimate goal of disk schedulers has always been to reduce the seek time of mechanical drives, thereby minimizing the overhead caused by random access operations. As a result, different disk schedulers employ complex techniques to achieve this common … Read more
When setting up Hadoop, OpenStack, or Docker containers, as well as K8S clusters, multiple hosts are required. Installing them one by one can be cumbersome, so we can create a template that can be cloned as needed.This article takes CentOS Stream 8 as an example to create a Linux template.1. Install a Minimal SystemImage download … Read more
C++ and Linux System Programming In modern software development, C++ is a widely used programming language, and Linux, as an open-source operating system, provides developers with rich resources for system programming. This article will introduce how to use C++ for Linux system programming and help readers understand related concepts through code examples. 1. Basics of … Read more
Hake Lingke Clip-On Sports Headphones: Are They What You Need? 1. Introduction: The Fashion Revolution of Clip-On Headphones In the headphone industry, the emergence of Hake Lingke clip-on sports headphones is like a breath of fresh air, changing the traditional design of headphones. This headphone not only breaks through in technology but also sparks a … Read more
1. Introduction to LE Audio 1.1. LE Audio Transmission Protocol At the end of 2019, the Bluetooth Special Interest Group (SIG) released the core protocol for Bluetooth 5.2, which introduced an important feature—LE Audio (Low Energy Bluetooth Audio). Bluetooth application protocols encompass everything from the application layer to the physical layer, and LE Audio is … Read more