This article compiles the top 50 questions frequently encountered in Linux system operation and maintenance interviews. Whether you are a beginner entering the IT industry or an experienced operations personnel aiming for promotion, these questions will provide you with comprehensive knowledge review and practical simulation, helping you stand out in interviews, successfully secure your desired … Read more
The event is in progress, and the speaker has embarked on a journey of knowledge, from the origin story of Linux to its development history, delving into system architecture analysis, interspersed with practical demonstrations. Everyone is closely watching the operation steps on the screen, quickly taking photos to record key content. When explaining command line … Read more
Linux expr Command <span>expr</span> is a powerful command-line tool in Linux systems used for evaluating expressions, performing arithmetic operations, string manipulation, and logical comparisons. It is widely used in shell scripts for dynamic processing and value calculations. Although modern shells (like Bash) provide built-in arithmetic and string manipulation capabilities, <span>expr</span> still holds significant value due … Read more
(Click the public account above to quickly follow) Author: Aaron Kili, Translation: Linux China/ch-cn linux.cn/article-8618-1.html If you have good articles to submit, please click → here for details Shell scripting is the simplest way to learn or practice programming in Linux. It is an essential skill for system administrators who need to handle automation tasks … Read more
(Add a star for Linux enthusiasts to enhance Linux skills) Author: Shouwang (This article is contributed by the author, see the end for a brief introduction) Introduction In fact, the unassuming ‘!’ has many astonishing uses in Linux. This article will enumerate those magical uses of ‘!’ in detail. Execute the Previous Command For example, … Read more
Follow “Coder Loves Learning“, set “Star Public Account“ Practical Benefits Delivered First-Hand! The embedded Linux system generally supports Wi-Fi connectivity, which can be achieved through shell scripts or other programming languages. This article introduces the execution principle of a script that configures Wi-Fi using a shell script. 1 Introduction to Wi-Fi Connectivity via Shell Script … Read more
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