Click the blue “Most Programmer” to follow me! Add a “star“, every day at 18:03 to learn technology together Redirection Standard input stdin: code is 0, use < or <<Standard output stdout: code is 1, use > or >>Standard error output stderr: code is 2, use 2> or 2>>Special syntax: write both stdout and stderr … Read more
As a Linux operations engineer, mastering command delimiters is a key skill to enhance work efficiency. This article will detail commonly used command delimiters in the CentOS7 system and their usage techniques, helping you operate the command line with ease. 01 Basic Delimiters Semicolon (;) and Logical AND (&&) 1. Semicolon (;) – Execute sequentially … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with the note [Public Account] for faster access 1. ls Command Syntax: ls [options] [directory or file] Function: For directories, this command lists all subdirectories and files within that directory. For files, it lists the file names … Read more
If you haven’t read the previous article, I suggest you check it out: Debugging C++ Programs Using GDB in Command Line (Part One) This article supplements the GDB debugging that wasn’t finished last time. I Want to Install GDB on Linux Okay, I downgraded the Linux distribution running on WSL from <span>24.04</span> to <span>22.04</span>, and … Read more
Reply “001” below in the public account to obtain the 154-page Linux study notes compiled by Ke Gan. Introduction I have been struggling in the operations and maintenance field for several years. I still remember when I started, I only knew how to use some simple commands, and when writing scripts, I made them as … Read more
Source: Liangxu Linux (ID: liangxulinux) If you want to reprint, please contact the original public account Today, I will introduce you to a super useful Linux command. With this command, you can easily use almost all common commands on Linux without worrying about remembering so many options! We know that there are about 300 to … Read more
Source: Machine Heart This article is 3208 words, and it is recommended to read it in 5 minutes. This article outlines the basic features of the Linux system and introduces some commonly used Linux commands to help you get started quickly. Linux has gained favor among many developers due to its stability and has become … Read more
One of the more complicated aspects of Linux is that many tasks must be controlled via commands. However, this is also a reason many people enjoy it, as the commands tend to be concise yet powerful. The author has compiled relevant articles to gradually summarize for future learning and reference. If there are any errors, … Read more
Linux | Red Hat Certification | IT Technology | Operations Engineer 👇Join our technical exchange QQ group with the note 【Official Account】 for quicker access 1. What is Linux 1. System Programming & Network Programming: Linux itself provides some APIs for programmers to call to complete more complex programming tasks (such as file operations, multithreading, … Read more
1 Introduction to nr_micro_shell During debugging and maintenance, it is often necessary to interact with microcontrollers to retrieve or set certain parameters or execute specific operations. nr_micro_shell is a basic command line tool designed to meet this need for resource-constrained MCUs. Although the finsh command line interaction tool provided in the RT_Thread component is powerful, … Read more