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zx

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zx

A tool for writing better scripts

  • 8.0.2-dev.1568ca9
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
726K
increased by3.36%
Maintainers
2
Weekly downloads
 
Created

What is zx?

The zx package is a tool for writing better scripts in a Node.js environment. It provides a more convenient and modern way to write shell scripts using JavaScript, leveraging the power of Node.js and its ecosystem.

What are zx's main functionalities?

Running Shell Commands

This feature allows you to run shell commands directly from your JavaScript code using template literals. The `$` function is used to execute the command and handle the output.

const { $ } = require('zx');

(async () => {
  await $`echo Hello, world!`;
})();

Handling Promises

zx makes it easy to handle promises and errors when running shell commands. You can use async/await syntax to manage asynchronous operations and catch errors using try/catch blocks.

const { $ } = require('zx');

(async () => {
  try {
    await $`exit 1`;
  } catch (error) {
    console.error('Command failed:', error);
  }
})();

Using Environment Variables

You can set and use environment variables within your scripts. This is useful for configuring your script's behavior based on different environments or settings.

const { $ } = require('zx');

(async () => {
  process.env.MY_VAR = 'Hello, world!';
  await $`echo $MY_VAR`;
})();

File System Operations

zx provides convenient access to Node.js's fs module, allowing you to perform file system operations like reading and writing files with ease.

const { fs } = require('zx');

(async () => {
  await fs.writeFile('example.txt', 'Hello, world!');
  const content = await fs.readFile('example.txt', 'utf8');
  console.log(content);
})();

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Package last updated on 05 May 2024

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