1. Introduction to Linux Linux is an open-source Unix-like operating system kernel, first released by Linus Torvalds in 1991. Today, Linux has become a mainstream operating system in fields such as servers, embedded devices, and supercomputers. Linux Distributions Ubuntu – A popular distribution suitable for beginners CentOS/RHEL – Commonly used in enterprise-level servers Debian – … Read more
The embedded Linux system generally supports WiFi networking, which can be achieved through sh scripts or other programming languages. This article introduces the execution principle of a script that configures WiFi using sh scripts. 1. Introduction to sh Script for WiFi Networking Here, we take the WiFi startup script in the Feilin development board as … Read more
System Information arch # Display the processor architecture of the machine (1) uname -m # Display the processor architecture of the machine (2) uname -r # Display the current kernel version dmidecode -q # Display hardware system components – (SMBIOS / DMI) hdparm -i /dev/hda # List the architectural features of a disk hdparm -tT … Read more
▼Click the image below to search for the code【001】, and receive154-page Linux study notes. cd Change directory: > cd ../ # Change to the parent directory > cd /tmp # Change to the /tmp directory > cd ~ # Change to the current user's home directory ls command Command to view files and directories, abbreviation … Read more
1. Linux Directory Structure The directory structure of Linux is tree-like, with the top-level directory being the root directory /. Other directories can be added to the tree through mounting, and removed by unmounting them. Absolute Path and Relative Path: Absolute Path: Starts from the root directory /, for example: /usr/share/doc. Relative Path: Does not … Read more
While I was waiting for the bus, I waited for one that never came, but those I didn’t wait for always arrived. This has a specific term in psychology: poverty. You can call me ugly, stupid, or lazy, but it doesn’t matter, only calling me poor will truly upset me. This society is too realistic; … Read more
Introduction Linux commands are essential tools for operating the Linux system. They can be categorized into several types, each containing a series of related commands used to perform specific system, file, or network operations. Whether managing the CPU, memory, disk drives, keyboard, mouse, or user management, Linux commands are indispensable.. Components of Linux Commands Linux … Read more
When your server’s CPU reaches 100%, how do you troubleshoot the abnormal fault? At the end of this article, a shell script will be shared to help you troubleshoot the Linux system CPU 100% anomaly. Yesterday afternoon, I suddenly received an operations email alert, indicating that the data platform server’s CPU utilization had reached 98.94%, … Read more
Click “Ke Yan Achievements” to follow, and select “Set as Star” to avoid getting lost Introduction Before we start the article, let me ask you a question: If you want to become an embedded engineer, after learning C language, what do you think you should learn next? Think about it, leave a comment at the … Read more
WeChat has changed its push rules; if you don’t star public accounts, you may not receive notifications. Detailed method for starring accounts: How to Star Public Accounts. Hello everyone, I am Zhiwei! Although there are many technical articles available online, the downside is that the knowledge points are too scattered. Books are meticulously organized and … Read more