How to install Node.js and NPM on CentOS

How to install Node.js and NPM on CentOS

Download Node.js

菜鸟教程-Node.js 安装配置

Introduction

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world. In this article we will explain the steps of installing node.js and npm in CentOS.

Step 1: Add node.js yum repository

First we need to add yum repository of node.js to our system which is sourced from nodejs' official website. Run the following commands in succession to add the yum repository.

yum install -y gcc-c++ make
curl -sL https://rpm.nodesource.com/setup_6.x | sudo -E bash -
Copy code

如果报错如下:

Error: Failed to download metadata for repo 'nodesource': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

尝试执行如下命令解决

sudo rm -r /var/cache/dnf

依然不行,去官网查看新版本的重新尝试。

Welcome to Node.js RPM repository

Step 2: Install node.js and NPM

Now it's time to install the node.js package and NPM package. Run the following command to do so. This single command will install node.js, npm and also other dependent packages.

yum install nodejs
Copy code

Step 3: Verify versions

Having installed the packages, you need to check their versions.

For checking node.js version:

node -v

#output
v6.9.4
Copy code

For checking npm version:

npm -v

#output
3.10.10
Copy code

Step 4: Testing the installation

You can test your installation by creating a test file, say test_server.js

vim test_server.js
Copy code

Then add the following content in the file.

var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Welcome');
}).listen(3001, "127.0.0.1");
console.log('Server running at http://127.0.0.1:3001/');
Copy code

Now start the web server using the below command

node --debug test_server.js

debugger listening on port 5858
Server running at http://127.0.0.1:3001/
Copy code

Web server has started which can be accessed using URL http://127.0.0.1:3001/ in your browser.

相关推荐
威迪斯特1 小时前
linux系统安全:开源的反病毒工具ClamAV的安装配置使用和维护介绍
linux·运维·centos·系统安全·扫描·病毒·木马
❀͜͡傀儡师3 小时前
CentOS 7 下升级 OpenSSL
linux·运维·centos
东魖6 小时前
nfs实验
linux·服务器·centos
雨会停rain6 小时前
centos部署rabbitmq
linux·centos·rabbitmq
2101_824775828 小时前
Linux(centOS)的安全命令
linux·安全·centos
Drscq14 小时前
How to migrate a CentOS 8 to Rocky Linux 8.10
linux·运维·centos
修心光14 小时前
CentOS配置iptables规则并使其永久生效
linux·运维·centos
bjzhang7518 小时前
Depcheck——专门用于检测 JavaScript 和 Node.js 项目中未使用依赖项的工具
javascript·node.js·depcheck
你不讲 wood1 天前
使用 Axios 上传大文件分片上传
开发语言·前端·javascript·node.js·html·html5