Create a nodejs CLI tool that is installable from NPM

NodeJS CLI tool on NPM.md

Nodejs CLI tool

1. Start off by first making a node project that can be operated from cli. You can get the cli arguments from process.argv which is an array containing all the command line arguments passed in.

2. Put #! /usr/bin/env node on top of your index file(entry point for your project). This is called shabang and let's the OS know what to run the file with.

3. Add the following to your package.json

   "bin": {
       "hello": "./index.js"
   },

   This will add tell npm to add the command named hello which will run the index.js file.

4. Now running npm i -g will install your project as a CLI application.

5. Test it.

6. Test it.

7. Test it.

8. To just run npm publish after going through npm adduser. In order to keep the install size smol you can add "files": ["lib/**/*"], to your package.json so that npm publishes on the files isnide the lib folder. One other way would be to use .npmignore file which works just like .gitignore.

9. Now anyone can install the cli app by running `npm i -g your_project_name".

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