Install Node.js and Npm in Ubuntu - Step by step Process ?

Node.js is an open-source and cross-platform JavaScript runtime environment. Usually, JavaScript is associated with web development and browser executions.

But Node.js enables its user to run JavaScript as a stand-alone application, on any medium. It means you can run JavaScript outside the browser.

Node Package Manager (npm) is both an online repository for modules and packages of Node.js, and a command-line utility for installation, version, and dependency management.

Npm is easy to use and makes working with Node.js very convenient. Additionally, npm comes with Node.js installation so you do not have to install it separately.

Here at Ibmi Media, as part of our Server Management Services, we regularly help our Customers to perform related Linux system Node JS and Npm queries.

In this context, we shall look into how to install Node.js and Npm in your Ubuntu operating system.

1. How to Install Node.js Ubuntu Package Using apt ?

You will need a curl command to enable the NodeSource repository. If you lack curl on your system, install curl on your system using the following command:

$ sudo apt-get install curl

To enable the NodeSource repository and update the apt-cache. run the following command:

$ curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -

Now you can go ahead and install the Node.js package with the following apt command:

$ sudo apt install nodejs

You can see the Node.js version with the following command:

$ node --version

As npm comes with the Node.js installation, you can check the npm version with the following command:

$ npm --version

2. How to Install Node.js With PPA Software Repository Using apt ?

If you want your repository to be self-maintained and updated so that you can work with the latest version of Node.js, you can use the NodeSource PPA for Node.js installation.

Install the NodeSource PPA with the following curl command:

$ curl -sL https://deb.nodesource.com/setup_16.x -o nodesource_setup.sh

Open the Nodesource setup script with nano editor and verify the configurations:

$ nano nodesource_setup.sh

To add the PPA to the configuration list and update the local cache, run the script:

$ sudo bash nodesource_setup.sh

Now you can install Node.js with the following command:

$ sudo apt install nodejs

To verify the installation and version of Node.js, run:

$ node -v

How to Install NVM for Node.js Installation and Version Management ?

Node Version Manager (NVM) is a script that helps with the installation and management of multiple versions of Node.js in your system.

Download NVM from the GitHub repository with the following curl command:

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash

You can see that the installation has made changes to the .bashrc file. Source your.bashrc file with the following command to proceed with the installation:

$ source ~/.bashrc

To see available versions of Node.js, run the following command:

$ nvm list-remote

Select the version and run the following command with your selected version:

$ nvm install v17.0.1

To see all the Node.js installations in your system, run the following command:

$ nvm list

You can see the current version that is in use mentioned in the first line of the output.

You can switch to another installed version and use it with the following command.

$ nvm use 17.0.1

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This article covers the different ways to install Node.js in your Ubuntu system. Node.js is a popular back-end JavaScript runtime used for creating web servers and scalable network apps. The environment supports server-side scripting - producing dynamic content for web pages before they are served to the user.

NPM is a package manager for JavaScript and the default package manager for Node.js. As such, NPM is installed alongside Node.js as a recommended feature.