Mastering Go CLI and TUI
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Mastering Go CLI and TUI

Create powerful, user-friendly command-line (CLI) and terminal user interface (TUI) applications in Go!

About the Book

Go is a fast, simple, and versatile programming language for building command-line and terminal user interfaces (CLI and TUI). Whether you want to create a tool for system administration, data analysis, network monitoring, or game development, Go can help you achieve your goals with ease and efficiency.

In this book, you will learn how to master the art of CLI and TUI development in Go. You will start by writing a CLI application using the flag package in the standard library. Then you will dive into CLI and TUI libraries and frameworks, such as cobra, bubble tea, and more. You will learn how to create interactive menus, forms, tables, charts, widgets, and animations that run entirely in the terminal. You will learn how to create Go CLI in extending kubectl CLI. You will also learn to test, debug, and confidently deploy your CLI and TUI applications.

By the end of this book, you will have the skills and knowledge to create powerful and user-friendly CLI and TUI applications in Go that can run on any platform and device.

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    • Go
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About the Author

Ravikanth Chaganti
Ravikanth Chaganti

Ravikanth is a Distinguished Engineer and an architect in the APEX Cloud Platform engineering at Dell Technologies. He is a multi-year recipient of the Microsoft Most Valuable Professional (MVP) award in Cloud and Data Center Management and Azure Cloud Native. Ravikanth is the author of Windows PowerShell Desired State Configuration Revealed (Apress) and Pro PowerShell Desired State Configuration. He can be seen speaking regularly at local user group events and conferences in India and abroad.

Table of Contents

    • Part 1
    • Introduction to CLI applications
      • Understanding command-line (CLI) syntax
      • The flag package
      • Creating custom flags
      • Using Non-flag arguments
      • Sub-commands
      • Configuring CLIs with Flag values from environment variables
      • Summary
    • The pflag package
      • The basics
      • Shorthand flags
      • String arrays and slices
      • Summary
    • The Cobra package
      • The Basics
      • CLI structure
      • Global flags and nested sub-commands
      • Shell completion
      • Command Suggestions
      • Command Grouping
      • Flag Grouping
      • Customizing Usage and Help
      • Dynamic flag and argument completion
      • Active help
      • Run hooks
      • Deprecating commands and flags
      • CLI version
      • Summary
    • The Viper package
      • The Basics
      • Using environment variables
      • Using external configuration files
      • Writing configuration
      • Remote configurations
      • Watching configuration changes
      • Summary
    • The urfave/cli package
      • The Basics
      • Flags
      • Commands and Subcommands
      • Shell Completion
      • Command and Flag Suggestions
      • Help Templates
      • Summary
    • Part 2

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