Build CLI with cobra

Initialize a new CLI project using the cobra-cli tool to generate the root command and main entry point.

1. Install the Cobra CLI generator. go install github.com/spf13/cobra-cli@latest

2. Generate a new project named myapp. cobra-cli init myapp

3. Change into the new project directory. cd myapp

4. Add a subcommand named run to the root command. cobra-cli add run

5. Build the executable binary. go build -o myapp

6. Run the CLI to verify the help output. ./myapp --help

Cobra is a framework that helps you build powerful command-line tools in Go without writing repetitive boilerplate code. It automatically handles command parsing, flag management, and help text generation so you can focus on your application logic. Think of it as a skeleton that lets you quickly assemble a professional CLI like Docker or Kubernetes.