Andi Ashari

Tech Voyager & Digital Visionary

Bun: Making Shell Scripts Simple in JavaScript

Bun: Making Shell Scripts Simple in JavaScript

JavaScript is a very popular language for coding. But, have you ever tried running shell scripts in JavaScript? It’s not always easy. Let’s talk about a new tool called Bun that makes this much simpler, especially if you use different operating systems like Windows, macOS, or Linux.

What’s the Problem with Shell Scripts in JavaScript?

Normally, running shell commands in JavaScript can be a bit complicated. For example, if you want to list all JavaScript files in a directory, you might write a lot of code using “child_process” or “fs/promises” modules. But these methods are not as straightforward as just typing ls *.js in a shell.

Also, different operating systems have different types of shells, like bash in Linux, zsh in macOS, and cmd in Windows. They all work differently. This makes it hard to write one script that works everywhere. To solve this, people often use extra packages, but that can be a lot of work too.

Why Bun Shell is Great

Now, there’s a new solution called Bun Shell. It’s part of Bun, which is a tool for JavaScript and TypeScript. Bun Shell lets you run shell scripts easily, no matter what operating system you’re using. It’s like writing regular JavaScript code. You can do things like list files, zip data, or even run complex commands, all in a simple and safe way.

Here’s an example of how easy it is:

import { $ } from "bun";

// List JavaScript files and show them:
await $`ls *.js`;

// Save the list to a text variable:
const fileList = await $`ls *.js`.text();

You can also use variables safely in your scripts, and Bun Shell will make sure they don’t cause any problems. This means you can write scripts without worrying about security issues.

How Bun Shell Works on Different Platforms

Bun Shell works on Windows, macOS, and Linux. It has many built-in commands like ‘cd’, ‘echo’, and ‘rm’. This means you can replace simple shell scripts with Bun Shell commands. If you’re using Bun on Windows, you can even use it in your package.json scripts.

How to Get Bun Shell?

Bun Shell is part of Bun. If you already have Bun version 1.0.24 or later, you can start using Bun Shell right away. To check your version, just type bun --version.

If you don’t have Bun yet, you can install it using curl or npm:

curl -fsSL | bash


npm install -g bun

That’s it! Bun Shell makes running shell scripts in JavaScript a lot easier, especially if you use different operating systems. Give it a try and see how it can make your coding simpler.