mmm-cli

A hello world TypeScript CLI demonstrating subcommands, interactive prompts, config persistence, colored output, and error handling.

Installation

npm install -g @melcher/mmm-cli

Once installed, the mmm command will be available globally.

Commands

mmm hello

Greets you by name. Uses your saved config if set up, otherwise defaults to "World".

mmm hello
# Hello, Max! 👋

mmm hello --name Alice
# Hello, Alice! 👋

mmm goodbye

Says goodbye. Defaults to "World" if no name is provided.

mmm goodbye --name Alice

mmm setup

Interactive setup that saves your name and favorite color to ~/.mmm/config.json.

mmm setup

mmm fetch

Simulates an API call with a spinner and colored output.

mmm fetch

mmm fail

Demos clean error handling and exit codes.

mmm fail
# ✖ Error: Something went wrong!

echo $?
# 1

Development

# Clone the repo
git clone https://github.com/melchermaxwell/mmm-cli.git
cd mmm-cli

# Install dependencies
npm install

# Run without building
npm run dev -- hello

# Build
npm run build

# Run built output
npm start