/proc is a special virtual file system. It does not exist on a physical disk but is dynamically generated by the kernel in memory. Its main purpose is to serve as an interface that allows user-space programs (such as ps, top, htop, etc.) to easily obtain runtime information about the kernel and processes, and in … Read more
📌 Don’t underestimate this command with just 5 letters; it is the first step in getting to know your Linux system. 1. Applicable Scenarios: When Do You Need It? • ✅ Quickly confirm system type: Is it Linux? macOS? Or another Unix? • ✅ Script cross-platform compatibility check: Determine the runtime environment at the beginning … Read more
1. Quick Reference Table for Linux Paths Syntax Meaning Example Description <span><span>/</span></span> 🟥 Root Directory <span><span>/etc/hosts</span></span> Starting point for all paths <span><span>.</span></span> 🟩 Current Directory <span><span>./script.sh</span></span> Indicates “in the current directory” <span><span>..</span></span> 🟨 Parent Directory <span><span>../file.txt</span></span> Parent directory of the current directory <span><span>~</span></span> 🟦 Current User’s Home Directory <span><span>~/docs</span></span> Equivalent to <span><span>/home/username</span></span> <span><span>~user</span></span> 🟪 Specified … Read more
In server operations and maintenance, we often use Linux servers, and it is essential to understand the server’s information status through the command line. Below, I will summarize the commonly used commands for viewing Linux system information, including: kernel version, system version, CPU, memory, hard disk, etc. 1. Command to check the Linux kernel version … Read more
The C_SysInfo project can actually be seen as a simple translation of the previous PySinfo project. This is a typical scenario where I believe online models and local models are particularly suitable for application – a broad “translation” process: 1.The requirements must be very clear about what needs to be done, and the technical path … Read more
Join our operations and maintenance community group: WeChat Group 2.0 | No idle chat, only practical discussions and growth, operations and maintenance professionals are welcome to join. Today, I am sharing a super cool script that automatically displays the system information you usually care about when you log into a Linux server, making it clear … Read more
File Search Commands: 1. find directory -name “filename“ – Search for files by name 2. find directory -type f -name “*.txt” – Find specific type of files 3. grep “text” filename – Search for text in a file 4. grep -r “text” directory – Recursively search for text in a directory 5. locate filename – … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us In C++, you can use Windows API functions to retrieve various information about the Windows system. Below are some common API functions and sample code for obtaining Windows system information: 1. Operating System Version #include <windows.h> #include <iostream> int main() { OSVERSIONINFOEX osvi; ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); … Read more