Linux<span>pidof</span> Command 1. Overview In a Linux system, a process is an instance of a program that is currently running. Each process has a unique Process ID (PID). When performing system administration, performance debugging, resource control, and security protection, it is often necessary to know the PID corresponding to a specific program.<span>pidof</span> is a command … Read more
1. Common Linux Commands and Their Meanings pwd: print work directory, prints the current directory and displays the absolute path of the current working directory. ps: process status, similar to the Windows Task Manager, commonly used parameters -auxf, ps -auxf are used to display process status. df: disk free, displays information about available disk space … Read more
1. General Scenario: Known Regular User Password Applicable Scenario: When a regular user account with sudo privileges is available 1. Open Terminal<span><span>Ctrl+Alt+T</span></span> to quickly launch the terminal, or search for “Terminal” in the application menu.2. Execute Password Change Command sudo passwd root 3. Authentication Process First, enter the current regular user password (for sudo permission … Read more
đ Linux Subdirectory <strong><span>/usr</span></strong> Directory Detailed Explanation đ I. Overview <span><span>/usr</span></span> is one of the most important directories in the Linux file system, which stands for “Unix System Resources”. It is used to store user programs, system tools, library files, documentation, shared resources, etc.. Originally designed as a read-only directory, it can be shared across … Read more
Click the "Linux Tech Enthusiast" above and select "Set as Star" to receive high-quality articles promptly. âăInsightăChatGPT 4.0 is unlocked, no limit on questions!!! âăInsightăTsinghua University senior's self-study Linux notes, top-level quality! âăInsightăComprehensive guide to commonly used Linux commands, all in one article. âăInsightăCollection! Linux basic to advanced learning roadmap. Link: https://www.cnblogs.com/xiaoyaozhe/p/17671275.html Log Management Objectives … 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
Practical Commands for Linux System Administration In today’s digital age, Linux, as a powerful open-source operating system, has become the preferred platform for server environments and technical professionals due to its high flexibility, security, and stability. This article provides readers with some practical commands for Linux system administration, covering network configuration, system monitoring, file operations, … Read more
In Linux system administration and operations, we often need to run various commands and scripts. Some commands generate a large amount of output, while others may frequently report errors, affecting the readability of logs or consuming storage space. Efficiently discarding unnecessary output and error messages is a skill that Linux operations engineers must master. This … Read more
1ăls command is an abbreviation for list. The ls command can be used not only to view the files contained in a linux directory but also to check file permissions (including directory, folder, and file permissions) and to view directory information, etc. Common parameter combinations: ls -a lists all files in the directory, including hidden … Read more
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