A Comprehensive Guide to Choosing Linux: Analyzing the Pros and Cons of Ubuntu and CentOS for Beginners Introduction Key Technical Point: Ubuntu Ubuntu is a Debian-based Linux distribution known for its user-friendly interface and strong community support. It offers a wide range of pre-installed software and tools, making the installation and configuration process simple and … Read more
This is a one-click auxiliary script that integrates backup and restore functions, supporting the backup of critical system data, configuration files, and software lists, as well as corresponding restore operations. The script includes interactive prompts, eliminating the need to manually input complex commands; it can be run directly. Script Name: sys_backup_restore.sh #!/bin/bash# System backup and … Read more
In many script files, we can see the following code on the <span>first line</span>: #!/bin/bash 或 #!/usr/bin/env python Carefully observe that the first line of the script file starts with the characters <span>#!</span>. This character sequence consisting of <span>hash</span> and <span>exclamation mark</span> is called <span>Shebang</span> (also known as <span>Hashbang</span>). Its purpose is to tell the … Read more
Introduction Deploying Qt applications in embedded Linux systems is a common requirement in scenarios such as industrial control, smart terminals, and in-vehicle systems. However, unlike desktop environments, embedded devices often lack a complete graphics stack (such as X11 or Wayland) and may not even have a window manager. Therefore, Qt provides various platform plugins to … Read more
🌟 The 24 Most Common Performance Tools for Linux Developers (In-Depth Guide) —— Mastering everything from system bottlenecks to DPDK tuning in one article In the world of Linux, performance analysis is a “core skill” for developers, operations engineers, and architects. Whether you are tuning large-scale servers, optimizing network forwarding performance (such as DPDK), or … Read more
In-Depth Analysis and Practical Guide to the Linux SPI Subsystem 1 Basics of the SPI Protocol: Understanding Hardware Communication Mechanisms The SPI (Serial Peripheral Interface) is a high-speed, full-duplex, synchronous serial communication protocol developed by Motorola, widely used for short-distance communication between microcontrollers and various peripheral devices (such as sensors, memory, display modules, etc.). Compared … Read more
1. Overview The goal is to construct and stably maintain a spatial oxygen gradient ranging from normoxia (≈21% O₂ gas phase) to anoxia/zero oxygen (0% O₂ gas phase) on a reproducible and quantifiable organoid/tumor-on-chip platform, and to achieve real-time/periodic monitoring and biological sampling to elucidate hypoxia-induced metabolic reprogramming (such as HIF pathways, glycolysis/lactate production, mitochondrial … Read more
In the past three years, the explosive expansion of AI has propelled Nvidia to a market valuation of $5 trillion, with this year’s net profit even surpassing the combined sales of Intel and AMD. This is not a coincidence, but rather a moat built from technology, products, and ecosystem. The dominance of the Blackwell and … Read more
SK Hynix is the leader in the HBM market, currently holding over 60% market share. The company is also making the fastest progress on the sixth generation HBM product, HBM4, with plans to deliver 12-layer HBM4 samples to NVIDIA by March 2025, and the first batch of products by June 2025, indicating that mass production … Read more
“I was just about to buy a 1TB SSD, and it was over 300 just two weeks ago, now it’s skyrocketed to 450?” This complaint from Xiao Zhou, a college student born after 2000, reflects a common concern among young people recently. Indeed, the storage market has gone completely “crazy”—SanDisk’s NAND flash memory has surged … Read more