1. Command Introduction and Principles tail is a command-line tool used to display the end content of files, particularly suitable for viewing log files and real-time monitoring of file changes. Its name comes from “tail,” complementing the head command. 1.1 Working Principle Reverse reading: Reads content starting from the end of the file, efficiently handling … Read more
1. ln ln is short for link.Links can be understood as “shortcuts” or “aliases” for files/directories. There are soft links and hard links, with soft links being more commonly used. ln [options] <source file> <target link> Soft links, also known as symbolic links, are more like “shortcuts” in Windows systems. -s –symbolic Create a soft … Read more
#CP2K Manual Welcome to the CP2K Manual! — CP2K documentation #Used to replacevaspkitfor surface integration tools:cubecruncher [CP2K Open Source Molecular Dynamics] cubecruncher.x -i input.cube -o output.cube -1d_profile 1 0.1 Specific parameter explanation: #cp2k.inpFile display tools:vim [CP2K Open Source Molecular Dynamics] tounch xx.xx Creates a file sudo apt autoremove -y is a command used to automatically … Read more
systemd systemctl # Start a service immediately systemctl start nginx.service # Stop a service immediately systemctl stop nginx.service # Restart a service systemctl restart nginx.service # Kill all child processes of a service systemctl kill nginx.service # Reload a service's configuration file systemctl reload nginx.service # Reload all modified configuration files systemctl daemon-reload # Show … Read more
1. ls Command This is an abbreviation for “list”. The ls command can be used to view the files contained in a Linux directory, as well as to check file permissions (including directory, folder, and file permissions), and to view directory information, etc. Common Parameter Combinations: ls -a List all files in the directory, including … Read more
This article compiles the most commonly used basic commands in the Linux system, covering file operations, user management, system monitoring, and network management, suitable for beginners to learn.📂 File and Directory Management1. Display directory contents ls -al Description: Displays all files in the current directory, including hidden files.2. Show current path pwd Description: Outputs the … Read more
fdisk -l # View available disks to mount, or use lsblk command df -h # View already mounted disks mkfs.ext4 /dev/sdb1 # Format the disk: format is ext4, note that this will `format the mountable disk` mount /dev/sdb1 /data0 # Mount the disk to `/data0`, ensure `/data0` is empty blkid # Get the disk's UUID … Read more
When I first started PHP development, I didn’t have a specific reason for choosing Linux. It wasn’t out of a passion for open-source software, nor did I think Linux was superior to macOS or Windows. At that time, I just wanted to find a lighter and more customizable development environment. For me, Linux was a … Read more
Some commonly used Linux commands. View the number of files in a directory ls -l | wc -l View the number of files in a directory and its subdirectories find . -type f | wc -l View the number of lines in a file wc -l file.txt Find file content and display a few lines … Read more
In the operation and maintenance of Linux systems, mastering efficient command operations is a fundamental requirement for every network security professional. A simple combination of commands can often automate cumbersome processes, significantly improving work efficiency. Today, I will share 20 frequently used Linux commands based on my daily work. These commands cover various aspects such … Read more