Create a simple cli (command line interface) tool from scratch in Golang

A cli interacts with computer program like go, docker, k8s, npm, vice versa.

Example:

$ go get -u URL
$ docker run -t image
$ kubectl get pods
$ npm install --save package

A common structure

App Subcommands --Flags Args

App has many subcommands Subcommands has own flags and arguments

Build

$ go install github.com/dungtc/go-cli-playground

It will install your binary into $PATH

Usage

Help

-help
	Usage:
		go-cli-playground [command]
	Available Commands:
		add         Add a new task
		count       Count total tasks
		list        List of tasks

Add task command

$ go-cli-playground add Make a cookie

List task command

$ go-cli-playground list
1. Do some thing
2. Make a cookie

Count task command

$ go-cli-playground count
Count: 2