Click on the above “Mechanical and Electronic Engineering Technology” to follow us 1. API In Linux system programming, file read and write involve a series of standard POSIX APIs. Here are some commonly used file operation-related APIs and their detailed descriptions: open() Function The open() function is used to open a file and returns a … 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
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group with 1000 members, note 【Public Account】 for faster approval 1. Getting Input When building a simple Shell, the first step is to get input and obtain environment variables: it can run like a shell and retrieve some … Read more
Click the blue text above to follow us 1 Disclaimer The tools, tutorials, learning paths, and quality articles provided by this public account are either original or collected from the internet, aimed at improving network security technology levels for technical research purposes. Please comply with relevant national laws and regulations, and do not use them … Read more
Introduction Linux is a type of Unix operating system, designed and developed by Linus Torvalds while studying at the University of Helsinki in 1991. Today, the Linux family has nearly 140 different versions that all use the Linux kernel. Advantages of Linux Operating System Free and Open Source: Open source code Security: No need for … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇1000-person technical exchange QQ group, note 【public account】 for faster approval 1. Installing the Linux Environment 1. Bare metal installation or dual system 2. Virtual machine installation 3. Cloud server (recommended) -> Easy to install, low maintenance cost, good learning effect, high simulation (multiple … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group of 1000 people, note 【public account】 for faster approval 1. Physical Structure of the Disk The physical structure of the disk is shown in the figure: The specific physical storage structure is as follows: The basic unit … Read more
Summary of Common Basic Linux Commands A account In Unix systems, it refers to the combination of a login name, personal directory, password, and shell that allows an individual to connect to the system. alias Alias. A mechanism in the shell that allows a string to be replaced by another when executing commands. Typing alias … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group with 1000 members, note 【public account】 for faster approval 1. Concept of Newline In the Linux system, \n and \r are two important escape characters, representing newline and carriage return respectively, each having different functions and application … Read more
There are indeed many commands in Linux, so I have summarized some of them for easier reference in the future. Without further ado, here are the Linux commands I use most often. 1. cd command This is a very basic command that everyone frequently needs to use. It is used to switch the current directory. … Read more