Master Cobra CLI Framework

Learn Go's most popular CLI library through hands-on command-line challenges. Build powerful tools used by Docker, Kubernetes, and GitHub CLI.

41K+ GitHub Stars
Modern CLI Framework
4 Challenges
Start Cobra Challenges Cobra Documentation
Path: /packages/cobra in the repository

Why Master Cobra CLI?

Build command-line tools used by Docker, Kubernetes, and GitHub

Command Structure

Build hierarchical commands with subcommands like Docker and kubectl.

Hierarchical commands
Subcommand organization

Flags & Arguments

Handle global flags, persistent flags, and command arguments with validation.

Global & persistent flags
Argument validation

Challenge Roadmap

From simple commands to production-ready CLI tools

1
Basic CLI App

Setup Cobra and create your first command

Beginner
2
Flags & Arguments

Handle user input with flags and args

Intermediate
3
Subcommands & Persistence

Build nested commands with shared state

Intermediate
4
Advanced Features

Configuration, completion, and packaging

Advanced
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