Command-line Tools

Stop Using curl! httpie Teaches You to Make Smoother HTTP Requests

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Stop Using curl! httpie Teaches You to Make Smoother HTTP Requests

In daily development, almost every backend developer, frontend developer, or testing engineer frequently deals with HTTP requests. Whether debugging interfaces, checking responses, or testing server behavior, the most commonly used tool is probably <span>curl</span>. However, many people find the syntax of <span>curl</span> unintuitive, the output unattractive, and reading it cumbersome. Is there a more elegant … Read more

Detailed Usage of the Linux gron Command

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Detailed Usage of the Linux gron Command

Introduction <span><span>gron</span></span> is a unique command-line tool that converts <span><span>JSON</span></span> data into discrete, easily <span><span>grep</span></span>-processable assignment statement format. Its name comes from “<span><span>grepable on</span></span>” or “<span><span>grepable JSON</span></span>“, primarily addressing the challenge of handling complex <span><span>JSON</span></span> data in the command line. Core Value <span><span>gron</span></span> is centered around flattening <span><span>JSON</span></span> data into a format similar to <span><span>json.path.to.key … Read more

Exiv2: A Powerful C++ Library for Image Metadata Processing

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Exiv2: A Powerful C++ Library for Image Metadata Processing

Exiv2: A Powerful C++ Library for Image Metadata Processing Exiv2 is a cross-platform C++ library and command-line tool for managing and manipulating metadata in image files. It supports reading, writing, deleting, and modifying Exif, IPTC, XMP, and ICC image metadata. This metadata often contains information about the image capture (such as camera model, capture time, … Read more

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

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Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Image source: Internet In Linux systems, there are many performance monitoring tools. Below, I will introduce several commonly used command-line tools. 1. top/htop top: Function: Real-time monitoring of processes, displaying information about CPU, memory, load, swap space, etc. Common Shortcuts: Shortcut Description M Sort by memory usage P Sort by CPU usage k Kill a … Read more

Detailed Explanation of the RedHat nmcli Tool in Linux IP

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Detailed Explanation of the RedHat nmcli Tool in Linux IP

RedHat <strong><span>nmcli</span></strong> Tool Overview 1. Overview <span>nmcli</span> is a command-line interface tool provided by NetworkManager for managing network connections in Linux systems. It supports configuration, management, monitoring, and debugging of network devices and connections. For Red Hat-based distributions (such as RHEL, CentOS, etc.), <span>nmcli</span> is the standard network management tool. 2. Installation and Version Check … Read more

Introduction to Rust Programming: Error Handling and User Feedback

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Introduction to Rust Programming: Error Handling and User Feedback

14.2 Error Handling and User Feedback When building command-line tools, error handling and user feedback are crucial components. Proper error handling not only ensures the stability of the program but also provides users with clear and friendly feedback, helping them understand how to use the program and how to fix errors. Rust itself provides a … Read more

Introduction to Rust Programming: Project Structure and Modular Design

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Introduction to Rust Programming: Project Structure and Modular Design

14.3 Project Structure and Modular Design When building command-line tools, a reasonable project structure and modular design are key to ensuring the project’s scalability, maintainability, and readability. Rust’s module system is very powerful, allowing you to organize your code into multiple files and modules for better management of complex projects. In this section, we will … Read more