In Linux systems, service management and system status control are daily tasks for system administrators. The systemctl command is the control tool for the Systemd system, used to manage system services and system status. Today, let’s learn about this super useful command—systemctl.1. What is the systemctl Command?The systemctl command is used to manage system services … Read more
The event is in progress, and the speaker has embarked on a journey of knowledge, from the origin story of Linux to its development history, delving into system architecture analysis, interspersed with practical demonstrations. Everyone is closely watching the operation steps on the screen, quickly taking photos to record key content. When explaining command line … Read more
Click the blue “Most Programmer” to follow me! Add a “star” to get daily tech learning at 18:03 Shell is the core weapon of the Linux system, but many people only know the basic commands likels、cd、rm and nothing more. The following advanced tricks will help you say goodbye to being a “Shell novice” and boost … Read more
There are many search tools in Linux, and today we will mainly discuss two tools: locate and find. 01 Locate 1. Performance Overview Queries the pre-built file index database on the system /var/lib/mlocate/mlocate.db Note: If this file is deleted, locate will not work. The database must be manually updated (updatedb), or the system must be … Read more
tar PART 01 Function Description: Add or restore files from backup files Syntax: tar -f[cxzjv] <file> Parameters: -f is a required parameter -c Create a backup file -x Extract files from the backup file -z Use gzip/gunzip to compress/decompress files -j Use bzip2/bunzip2 to compress/decompress files -v Show the command execution process Example: tar -cf … Read more
This article introduces practical methods for querying user information in Linux systems, focusing on command-line tools for obtaining user account details, login information, and user activity status. To create a new user, you can use the <span>useradd</span> command; to modify existing user attributes, you need to call the <span>usermod</span> command via the command line. The … Read more
<span>find</span> command is a powerful tool in Unix and Unix-like systems (such as Linux) used to search for files and directories within a directory tree. It offers various options for complex searches, allowing filtering based on file name, type, time, size, and more. Below is a detailed introduction to the <span>find</span> command, including commonly used … Read more
When a program or system malfunctions, it can lead to file names containing special characters or becoming corrupted. Sometimes, using the rm command directly may not work, as shown in the image below:Here are several methods to delete such files: 1 Use rm — or rm ./ If the file name starts with a ‘-‘, … Read more
Introduction <span><span>apropos</span></span> is a fuzzy search tool that can search for input keywords in all <span><span>man</span></span> pages. Compared to <span><span>whatis</span></span>, which can only search command names, <span><span>apropos</span></span> can also search descriptions. Common Options <span><span>-e, –exact</span></span>: Returns names and descriptions that exactly match the keyword <span><span>-d</span></span>: Print debug messages <span><span>-w, –wildcard</span></span>: Use wildcard to search for … Read more
Comprehensive Analysis of Linux Command Line Help Tools Proficient use of help tools in Linux systems is key to enhancing operational efficiency. This article systematically reviews mainstream methods for viewing command help and provides usage suggestions based on practical scenarios. 1. Built-in Help Tools –help or -h option is suitable for quickly obtaining a brief … Read more