How to build a CLI tool in NodeJS

Why Build a Command-line Tool with Node.js?

Before we dive in and start building, it’s worth looking at why we might choose Node.js to build a command-line application.

The most obvious advantage is that, if you’re reading this, you’re probably already familiar with it — and, indeed, with JavaScript.

Another key advantage, as we’ll see as we go along, is that the strong Node.js ecosystem means that among the hundreds of thousands of packages available for all manner of purposes, there are a number which are specifically designed to help build powerful command-line tools.

Finally, we can use npm to manage any dependencies, rather than have to worry about OS-specific package managers such as Aptitude, Yum or Homebrew.


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