The Ansible `cron` module is used to manage scheduled tasks (cron jobs) on remote hosts, allowing you to create, modify, and delete scheduled tasks to ensure specified tasks are executed automatically at designated times. 1. Features of Ansible’s `cron` Module Manage crontab and environment variable entries: You can create environment variables and named crontab entries, … Read more
Requirements As a professional in the IoT industry, having worked on numerous IoT projects, the requirements for an IoT platform are very clear: 1.The supported protocols need to be numerous enough, with common protocols like MQTT and Modbus needing to be supported and easily extensible. 2.The system management must be comprehensive: user management, permission management, … Read more
The following is a complete reference manual for 100 high-frequency Linux commands, categorized with command names, function descriptions, common parameters, and typical use cases: 1. File and Directory Operations (15 commands) Command Function Description Parameter Examples Typical Use Case <span><span>ls</span></span> List directory contents <span><span>-l for detailed information </span></span><code><span><span>-a</span></span>Show hidden files <span><span>ls -la /etc</span></span> <span><span>cd</span></span> Change … Read more
Common commands for the nano editor, where ^ represents Ctrl and M represents Alt. When shutting down Linux, use the who command to check online status, netstat -a to check network connections, and ps -aux to view background processes. Before shutting down, use the sync command to write data to disk. Use the shutdown command … Read more
Click the above “Mechanical and Electronic Engineering Technology” to follow us 1. System Management Update the package list: sudo apt update Upgrade installed packages: sudo apt upgrade Install new packages: sudo apt install <package_name> Remove packages: sudo apt remove <package_name> Clean up unnecessary packages and cache: sudo apt autoremove Find packages: apt search <keywords> View … Read more
Introduction Linux commands are essential tools for operating the Linux system. They can be categorized into several types, each containing a series of related commands used to perform specific system, file, or network operations. Whether managing the CPU, memory, disk drives, keyboard, mouse, or user management, Linux commands are indispensable.. Components of Linux Commands Linux … Read more
Linux, like Windows and MacOS, is an operating system designed for users. Currently, their usage scenarios differ. Linux is widely used in the server domain, while personal users tend to be more technical. Windows has the widest reach, being used across various industries on desktop systems, attracting the largest audience. MacOS is unique, aesthetically pleasing, … Read more