Go Programming for Command-Line Tools

Command-line tools are the backbone of modern development, DevOps, and system administration. Go has emerged as the premier language for building these utilities due to its speed, strong typing, and ability to compile into single, self-contained binaries. This text-based course guides you from absolute beginner to confidently writing your own command-line applications. You will start by mastering foundational Go concepts, understanding its strict type system, and learning how to structure clean, maintainable code. From there, you will transition into practical CLI development, handling inputs, managing files, and compiling your tools for multiple operating systems. What you'll learn: - Understand Go syntax, foundational types, and modern package management with Go modules - Build robust command-line interfaces that accept flags, arguments, and environment variables - Implement error handling and structured logging to ensure reliable execution - Read and write files, parse JSON data, and interact with external system processes - Configure cross-compilation to build binaries for Windows, macOS, and Linux from a single codebase - Practice writing clean, testable code using Go's built-in testing framework This course begins with core syntax and terminology before moving step-by-step through file operations, user input, and compilation strategies. You will read clear explanations, analyze code snippets, and complete practical written exercises to reinforce your learning. This course is designed for beginners new to Go or developers looking to transition their scripting skills to a compiled language. No prior experience with Go is required. Start reading today and build your first high-performance command-line tool with Go.