<span>ifconfig</span> is a traditional Linux command-line tool used to configure, view, and manage network interfaces (such as Ethernet, wireless network cards, loopback interfaces, etc.). Although it has gradually been replaced by the more powerful <span>ip</span> command (from the <span>iproute2</span> toolkit) in modern Linux distributions, <span>ifconfig</span> is still widely available on many systems and is familiar … Read more
This article lists various practical Linux commands from aspects such as backup and compression, file system search, networking, arithmetic operations and conversions, text processing, date and time, multimedia, disk usage and management, and hardware information, serving as a reference guide. 1. Backup and Compression Command Description <span><span>tar -c scripts/ | bzip2 -9 > scripts.tar.bz2</span></span> Compress … Read more
<span>touch</span> command is a commonly used command in Linux and Unix systems for creating empty files or updating the timestamps of existing files. 🔧 Basic Syntax: touch [options] filename… ✅ Main Functions Create empty files (if the file does not exist) Update file timestamps (if the file already exists): Modification time (mtime) Access time (atime) … Read more
1. File and Directory Operations Command Function Common Parameters Example <span>ls</span> List directory contents <span>-l</span>(detailed) <span>-a</span>(hidden files) <span>-h</span>(human-readable sizes) <span>ls -lah /home</span> <span>cd</span> Change directory <span>..</span>(parent directory) <span>~</span>(home directory) <span>cd ~/Documents</span> <span>pwd</span> Display current path – <span>pwd</span> <span>mkdir</span> Create directory <span>-p</span>(create parent directories) <span>mkdir -p project/{src,doc}</span> <span>cp</span> Copy files/directories <span>-r</span>(recursive) <span>-v</span>(verbose) <span>cp -rv data/ backup/</span> … Read more
This section shares tutorials on commands in the Linux system, which are crucial for front-end developers, back-end developers, and operations personnel. Nowadays, both front-end pages and back-end projects are primarily deployed on Linux servers. If you want to deploy your own service applications, mastering the usage of Linux commands is essential, so this section will … Read more
1. Terminal Related Operations 1. Open the terminal on Ubuntu 1. Click the Terminal icon 2. Use the shortcut <span>ctrl+alt+t</span> 2. Adjusting Font Size Increase:<span>ctrl shift +</span> Decrease:<span>ctrl -</span> 3. Meaning of Command Line Prompt <span>linux@ubuntu:~$</span> linux: username (<span>whoami</span> command to get the username) ubuntu: hostname (<span>hostname</span> command to get the hostname) ~: path (<span>/home/linux/</span>) … Read more
Core Idea: The Power of Command Combinations The philosophy of Linux is that a program should do one thing and do it well. Combining multiple commands through pipes <span>|</span>, redirection <span>></span>, and logical operators <span>&&</span> and <span>||</span> is key to solving complex problems. 1. System Status and Monitoring Real-time Monitoring of Core Metrics (Top Integrated … Read more
Many people have this confusion: they want to learn Linux but are intimidated by the command line.In fact, there are methods to learn commands, and there is no need for rote memorization. This series of articles is designed to help everyone overcome their fear of the command line. As long as you keep reading, you … Read more
Having worked in operations for several years, I still remember when I first started; I only knew how to use some basic commands, and when writing scripts, I kept them as simple as possible, which often resulted in long and messy scripts. If I had known some advanced commands, such as the xargs command, pipe … Read more
Common Linux Commands – Part 4 4. Log Directory /var/log # Main log directory, /var/log/secure # Logs related to user login security, a large file indicates someone is attempting to crack passwordscat /var/log/secure | grep login # Search for login-related strings in the secure file/etc/ssh/sshd_config # Modify this file to enable passwordless loginid_rsa.pub # Public … Read more