In this tutorial, we will help you to install NVM on Ubuntu 22.04 Linux system. Also, provide you with the instructions to install multiple Node.js versions with useful examples.

Prerequisites

• You must have a running Ubuntu 22.04 Linux system with shell access.
• Log in with a user account to which you need to install node.js.

Installing NVM on Ubuntu

A shell script is available for the installation of nvm on the Ubuntu 22.04 (Jammy Jellyfish) Linux system. Open a terminal on your system or connect a remote system using SSH. Use the following commands to install curl on your system, then run the nvm installer script.

sudo apt install curl 
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash 

The nvm installer script creates an environment entry to the login script of the current user. You can either log out and log in again to load the environment or execute the below command to do the same.

source ~/.profile 

Installing Node using NVM

You can install any number of node.js versions of your requirements using nvm. Then you can use the required version for your application from installed node.js.

• Install the latest version of node.js. Here node is the alias for the latest version.

  nvm install node 
  

• To install a specific version of node:

  nvm install 16.14.0  
  

You can choose any other version to install using the above command. The very first version installed becomes the default. New shells will start with the default version of the node (e.g., nvm alias default).

Working with NVM

You can use the following command to list installed versions of the node for the current user.

nvm ls 

List available node.js versions for the installation.

nvm ls-remote 

You can also select a different version for the current session. The selected version will be the currently active version for the current shell only.

nvm use 16.14.0 

To find the default Node version set for the current user, type:

nvm run default --version 

You can run a Node script with the desired version of node.js using the below command:

nvm exec 16.14.0 server.js 

Conclusion

In this tutorial, you have learned to install nvm on Ubuntu 22.04 LTS (Jammy Jellyfish) Linux system. Also, get a basic understanding of the nvm uses.

The post How To Install NVM on Ubuntu 22.04 appeared first on TecAdmin.

This tutorial will help you to install and manage multiple Node.js versions on Windows using NVM.

How to Install NVM on Windows

The coreybutler has build the nvm installer for the Windows systems. Visit the below link to download the NVM installer for the Windows systems.

And download the nvm-setup.zip file of the latest version.

Extract the downloaded archive file from your system.

You will get a node-setup.exe file under the archive file. Double click the node-setup.exe file to begin the Node installation on Windows.

Follow the installation wizard to complete the installation of Node on Windows.

Installing Node.js on Windows using NVM

As you have already installed the NVM on your system. Now, you can install any version of Node.js on the Windows system. To install the most recent version use “latest” and to install latest stable version use “lts” with nvm install command.

• Use the following command to install most recent Node.js version

  nvm install latest 
  

  

• To install the latest stable version, execute the following command

  nvm install lts 
  



• You can also install a specific version like 14.15.0.

  nvm install 14.15.0 
  

You can follow the same commands to install multiple node versions on a single system.

Setup Default Node.js Version

You can change the default active Node version with the following command. For example, to setup Node 14.1.50 as default version, type:

nvm use 14.15.0 

Once the new version activated, type:

node --version 

This will show the current active Node.js version. See the below screenshot:

Uninstall Node Version

You can remove unused older Node version’s from your system with the following command.

nvm uninstall 14.15.0 

Change the version number as per your requirements. The above command will remove Node 14.15.0 from your system.

Conclusion

This tutorial helped you for installing NVM on Windows system. Also provides you commands to install specific Node.js version on Windows system.

Remember that the NVM is installed for a specific user. So to use NVM for another user, need to separately install it from that account.

The post How To Install NVM on Windows appeared first on TecAdmin.

It is available for all Operating Systems; in this article, you will learn how to install NodeJs on your Debian system (Linux OS) so that you can build amazing applications using NodeJs.

Given below are three methods to install NodeJs on Debian 11, you can follow any of these you find easier for successful installation:

• Installing Node.js from Debian Repository
• Install NodeJs using PPA
• Installing NodeJs using NVM

Method 1 – Installing Nodejs from Debian Repository

At the time of writing this tutorial, the Node.js 12.22.5 version is available under default repositories. To get this version of NodeJs on your Debian system follow the steps mentioned below:

1. Update Packages – First update all the packages previously installed in the System by below mentioned command:

   sudo apt update 
   

2. Install Nodejs and NPM – The “npm” is the package manager of NodeJs, run the below mentioned command to install NodeJs and npm on Debian 11:

   sudo apt install nodejs npm 
   

3. Check Version – To verify the correct version installation of NodeJs, run the below mentioned command to check version number of recently installed NodeJs:

   node -v 
   

   Output:
   v12.22.5
   

Method 2 – How to install NodeJs using NodeSource PPA

You can use a PPA (Personal Package Archive) provided by NodeSource to operate with the latest version of NodeJs. This is an alternative repository containing ‘Apt’ and contains current versions than the official Debian repositories for NodeJs.

Follow the steps below for successful installation of NodeJs using PPA:

1. Install PPA – To install NodeJs Package using “Apt”, add the repository to Package list using below-mentioned syntax:

   curl -sL https://deb.nodesource.com/setup_[version_number] -o nodesource_setup.sh

   You can replace “version number” with the version you want to install, here I am installing stable version “16.x” by below mentioned command:

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

2. Configure NodeSource setup – Run the below mentioned to inquire newly downloaded script, it will open a file and after inspecting the file press Ctrl+X to exit the file and return to terminal:

   nano nodesource_setup.sh 
   

3. Run the Script – After configuring the script, run the script using below mentioned command:

   sudo bash nodesource_setup.sh 
   

   The PPA is added to your settings and the local package cache is instantly updated.

4. Install NodeJs – Now after adding PPA, install NodeJs using below mentioned command, we don’t need to install npm separately here as it is already included in package:

   sudo apt install nodejs 
   

5. Check Version – Now verify installation by checking version number of NodeJs:

   node -v 
   

   Output:
   v16.14.0
   

   Also check version of npm to verify its installation with NodeJs:

   npm -v 
   

   Output:
   8.3.1
   

6. Installing “build-essential” – To get the needy tools to work with npm package, run the below mentioned command:

   sudo apt install build-essential 
   

Method 3 – Installing NodeJs using NVM on Debian 11

Node Version Manager, abbreviated as NVM, can also be used to install NodeJs on Debian. Instead of functioning in the operating system, NVM operates in the home directory of your user at the level of an independent directory. In other words, without impacting the overall system, you may install numerous autonomous NodeJs versions.
You may use NVM to control your environment while maintaining and handling prior releases in the latest NodeJs versions.

Follow the steps given below to install NodeJs using NVM:

1. Download NVM installation script – Firstly, from the GitHub link download the nvm installation script by the below-mentioned command:

   curl -sL https://raw.githubusercontent.com/creationix/nvm/master/install.sh -o install_nvm.sh 
   

2. Configure script – Using nano command, inquire the downloaded script by below mentioned command:

   nano install_nvm.sh 
   

   After checking the file, if everything seems good then exit the editor by pressing Ctrl+X.

3. Run the script – After configuring the file, run the downloaded script:

   bash install_nvm.sh 
   

4. Gain Access to NVM Functionality – Running NVM script will add additional setup to “~/ .profile” , allowing the new program, you will either log out or log in back; reload “~/ .profile” file using:

   source ~/.profile 
   

5. Install NodeJs from available versions on NVM –
   First, we can check which versions of NodeJs are available on NVM by below mentioned command:

   nvm ls-remote 
   

   Now choose the version number you want to install from list, Syntax: nvm install [version-number]

   I am going to install version 16.14.0, so replace [version-number] with 16.14.0:

   nvm install 16.14.0 
   

   In general, the latest version is used by nvm, you need to tell nvm to use the version you downloaded by below mentioned command:

   nvm use 16.14.0 
   

6. Check Version – You can check the version of NodeJs installed using:

   node -v 
   

   Output:
   v16.14.0
   

   If you are having many node versions installed on your system, to check recently installed version, run the below mentioned command:

   nvm ls 
   

   Output:
   ->     v16.14.0
            system
   default -> 16.14.0 (-> v16.14.0)
   iojs -> N/A (default)
   unstable -> N/A (default)
   node -> stable (-> v16.14.0) (default)
   stable -> 16.14 (-> v16.14.0) (default)
   lts/* -> lts/gallium (-> v16.14.0)
   lts/argon -> v4.9.1 (-> N/A)
   lts/boron -> v6.17.1 (-> N/A)
   lts/carbon -> v8.17.0 (-> N/A)
   lts/dubnium -> v10.24.1 (-> N/A)
   lts/erbium -> v12.22.10 (-> N/A)
   lts/fermium -> v14.19.0 (-> N/A)
   lts/gallium -> v16.14.0
   

Set Default Version of NodeJs using NVM

If you want to set any version as default, type the below-mentioned syntax: nvm alias default [version-number]

I am going to default version v16.14.0 so replace [version-number] with v16.14.0:

nvm alias default 16.14.0 

Test NodeJs

We can check whether our installed NodeJs is working or not; make sample JavaScript file using nano command:

nano sample.js 

The file will be opened in the editor now enter the below-shown content in the file to print “Hello World” on Terminal. Press Ctrl+O to save file and press Ctrl+X to exit file:

const http = require(‘http’);
const hostname = ‘localhost’;
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader(‘Content-Type’, ‘text/plain’);
  res.end(‘Hello World\n’);
});
  server.listen(port, hostname, () => {
  console.log(‘Server running at http://${hostname}:${port}/’);
});

Now to start application run below mentioned command:

node sample.js 

Output:
Server running at http://localhost:3000

Run below mentioned command to test application on another terminal:

curl http://localhost:3000 

How to uninstall NodeJs from Debian 11 Bullseye

Depending on the version you wish to target, you can remove NodeJs with apt or NVM You will need to deal with the apt program on the system level to uninstall versions installed from the Debian repository or from PPA.
To uninstall any of version, run the below mentioned command:

sudo apt remove nodejs 

If you wanted to uninstall version of NodeJs installed from NVM, for that first check the current version of NodeJs installed by below mentioned command:

nvm current 

Then run the below-mentioned syntax to uninstall any specific version of NodeJs installed using NVM on your system:

nvm uninstall [version-number]

I am uninstalling current version of NodeJs, so first I need to deactivate NVM:

nvm deactivate 

Now run the command:

nvm uninstall 12.1.0 

Conclusion

NodeJs is a server-side framework to build JavaScript apps. It is used for both back-end and front-end programming. In this article, we discuss its installation on Debian 11 using three methods which are using Debian’s official Repository, through PPA Repository, and also through NVM and also discuss its testing and uninstallation from the system.

The post How To Install Node.Js on Debian 11 appeared first on TecAdmin.

Using the nvm utility, we can install the multiple node.js versions in a single account and manage them easily. The application can have use .nvmrc at root folder to autoselect the Node.js version.

This tutorial will help you to install nvm on Debian 11 “bullseye” Linux system.

Prerequisites

• Assuming that you have a running Debian 11 Bullseye Linux system with shell access. No need to have sudo access.
• Login to the system and open a shell in your account
• The newly installed system are requested to complete initial server setup on Debian 11.

How to Install NVM on Debian 11

A shell script is available for the NVM installation on any Linux system. First of all, check if your system has installed the curl command-line utility. If not, use the following command to install curl.

sudo apt install curl -y 

Then execute the NVM installation bash script as your user. No need to use sudo with the installation script.

curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash 

The above script makes all the required environment settings to the login script of the currently logged-in user. To apply the settings log out and log in again to your account or just execute the below command to do the same.

source ~/.bashrc

How to Install Node.js on Debian 11

The nvm allows you to install multiple Node.js versions for a single user account. Use the following commands to install the required node.js version on your Debian 11 system.

• Install Latest Node Version – This is the most recent version released for the installation by Node.js team. You can use “node” as alias for the latest version.

  nvm install node 
  

  

• Installing Latest Stable Node Version – Use the --lts option with command line to install latest LTS (Long Term Release) version.

  nvm install node --lts 
  

• To install a specific version of node:

  nvm install 12.20.1  
  

  Change 12.20.1 with your required Node.js version to install on Debian 11 system.

The very first version installed becomes the default. New shells will start with the default version of node (e.g., nvm alias default).

How to Use NVM?

Here are some useful options to use with the nvm command-line utility.

You can use the following command to list installed versions of Node for the current user.

nvm ls 

With this command, you can find the available Node.js version for the installation.

nvm ls-remote 

You can also select a different version for the current session. This will be a current active version for the current shell only.

nvm use 12.20.1 

To find the default Node version set for the current user, type:

nvm run default --version 

You can run a Node script with the desired version of node.js using belwo command:

nvm exec 12.20.1 server.js 

Conclusion

This tutorial helped you to install nvm on Debian 11 Bullseye Linux system. Additionally provided you the basic instructions to use the NVM utility.

The post How To Install NVM on Debian 11 appeared first on TecAdmin.

This tutorial helps you to install NVM on your macOS system and manage Node.js versions.

Prerequisites

You must have macOS desktop access with administrator privileges.

Login to the macOS desktop system and install Homebrew on your system (if not already installed)

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 

For more instruction visit Homebrew installation tutorial.

Step 1 – Remove existing Node Versions

If your system already has a node installed, uninstall it first. My system already has installed node via Homebrew. So uninstalling it first. Skip if not already installed.

brew uninstall --ignore-dependencies node 
brew uninstall --force node 

Step 2 – Install NVM on macOS

Now, your system is ready for the installation. Update the Homebrew package list and install NVM.

brew update 
brew install nvm 

Next, create a directory for NVM at home.

mkdir ~/.nvm 

Now, configure the required environment variables. Edit the following configuration file in your home directory

vim ~/.bash_profile 

and, add the below lines to ~/.bash_profile ( or ~/.zshrc for macOS Catalina or newer versions)

export NVM_DIR=~/.nvm
source $(brew --prefix nvm)/nvm.sh

Press ESC + :wq to save and close your file.

Next, load the variable to the current shell environment. From the next login, it will automatically loaded.

source ~/.bash_profile

That’s it. The NVM has been installed on your macOS system. Go to next step to install Node.js versions with the help of nvm.

Step 3 – Install Node.js with NVM

First of all, see what Node versions are available to install. To see available versions, type:

nvm ls-remote 

Now, you can install any version listed in above output. You can also use aliases names like node for latest version, lts for latest LTS version, etc.

nvm install node     ## Installing Latest version 
nvm install 14       ## Installing Node.js 14.X version 

After installing you can verify what is installed with:

nvm ls 

If you have installed multiple versions on your system, you can set any version as the default version any time. To set the node 14.X as default version, simply use:

nvm use 14 

Similarly, you can install other versions like Node 12, 15, and 18 versions and switch between them.

Conclusion

This tutorial explained you to how to install NVM and node.js on the macOS system.

The post How To Install NVM on macOS with Homebrew appeared first on TecAdmin.

Managing the multiple Node.js versions for differnt-2 projects are a pain for the developers. But NVM helped to easily manage multiple active Node.js versions on a single system.

This tutorial will explain you to install NVM on CentOS/RHEL 7/6 systems and manage multiple Node.js versions.

Installing NVM on CentOS 7

NVM provides a simple bash script for the installation on Linux systems. Open a terminal on your system or connect a remote system using SSH.

Make sure your system have curl installed.

sudo yum install curl -y 

Then execute the installer script as following command:

curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash   

Basically, NVM keeps all files under the $HOME/.nvm directory. Then it sets environment in users .bashrc file. You need to load this environment to set required configuration by running the following command:

source ~/.bashrc

Installing Node.js using NVM

Nvm allows to install multiple node versions on your system for the logged in user. You can find all the available Node version for installation by running command:

nvm ls-remote 

Above command will show you a list of available node versions. Now you can install any node version by typing:

nvm install 12.19.1 

Just change 12.19.1 with your required version like 11.15.0, 10.11.0, etc.

It also provided alias for the latest stable node version, LTS version and other previous LTS version.

nvm install node        ## install latest stable version 
nvm install lts/*       ## install latest lts version 

You can also use lts/dubnium, lts/carbon etc.

Using NVM

You can use the following command to list installed versions of node for the current user.

nvm ls 

With this command, you can find the available node.js version for the installation.

nvm ls-remote 

You can also select a different version for the current session. The selected version will be the currently active version for the current shell only.

nvm use 12.18.3 

To find the default Node version set for the current user, type:

nvm run default --version 

You can run a Node script with the desired version of node.js using the below command:

nvm exec 12.18.3 server.js 

Uninstall Specific Node Version with NVM

You can remove any unused version by running the following command. Just make sure the version you are removing is not currently active version.

To remove Node.js 5.8.0, type:

nvm uninstall 5.8.0 

Conclusion

This tutorial helped you to install nvm and node on Fedora Linux system. You also learned about basics of nvm command line utility.

The post How To Install NVM on CentOS/RHEL 7 appeared first on TecAdmin.

You can also create an .nvmrc configuration file to auto select Node version.

This tutorial help you to install NVM on your system and managing multiple Node.js version.

Prerequisites

• A running Debian 9 Linux system with shell access.
• Login with a user account to which you need to install Node.js.

Installing NVM on Debian

Use a shell script to install and configure NVM on your Debian system. Download the shell script from Github and execute on your system.

Also, you can download and run this script in single command. Open a terminal and execute below commands.

sudo apt install curl 
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash 

Above script makes all the required environment settings to login script of current logged in user. To apply the settings logout and login again to account or just execute below command to do the same.

source ~/.profile   

Installing Node using NVM

You can install multiple Node.js versions using nvm. And use required version for your application from installed Node.js.

Install the latest version of Node.js. Here node is the alias for the latest version.

nvm install node 

To install a specific version of node:

nvm install 12.18.3  

You can choose any other version to install using above command. The very first version installed becomes the default. New shells will start with the default version of node (e.g., nvm alias default).

Working with NVM

You can use the following command to list installed version’s of Node for the current user.

nvm ls 

With this command you can find available Node.js version for the installation.

nvm ls-remote 

You can also select a different version for the current session. This will be current active version for current shell only.

nvm use 12.18.3 

To find the default Node version set for the current user, type:

nvm run default --version 

You can run a Node script with the desired version of node.js using belwo command:

nvm exec 12.18.3 server.js 

Conclusion

This tutorial explained how to install nvm on Debian 9 Linux system.

The post How To Install NVM on Debian 9 appeared first on TecAdmin.

This tutorial will help you to install NVM on your Amazon Linux machine. Also helped you to basic uses of NVM for Amazon Linux systems.

Prerequisites

A running Amazon Linux system with shell access. Login to your Amazon Linux system via SSH.

Step 1 – Installing NVM

Node Version Manager official team provides a shell script for the installation of NVM command line utility. Use the following commands to install NVM on Amazon Linux system:

sudo yum install curl -y 
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash   

This will create a .nvm directory under the logged in user home directory. NVM keeps all the binaries and configuration files under this .nvm directory.

Logout and login with your user account to load nvm environment or use the following command to load environment without login again.

source ~/.bashrc

At this stage, you have successfully install NVM on your system.

Step 2 – Installing Node using NVM

NVM allowed users to install multiple node.js versions for each user account. First of all, use the following command to find all available versions of node.js for installation:

nvm ls-remote 

Above command will show you a list of available node versions. Now you can install any node version by typing:

nvm install 12.19.0 

Just change 12.19.0 with your required version like 11.15.0, 10.11.0, etc.

It also provided alias for the latest stable node version, LTS version and other previous LTS version.

nvm install node          ## install latest stable version 
nvm install lts/*         ## install latest lts version 

You can also use lts/dubnium, lts/carbon etc.

Step 3 – Working with NVM

You can use the following command to list installed versions of node for the current user.

nvm ls 

With this command, you can find the available node.js version for the installation.

nvm ls-remote 

You can also select a different version for the current session. The selected version will be the currently active version for the current shell only.

nvm use 12.19.0 

To find the default Node version set for the current user, type:

nvm run default --version 

When you have multiple node.js version installed, You can choose specific version to run any script:

nvm exec 12.19.0 server.js 

Step 4 – Uninstall Specific Node Version with NVM

You can remove any unused version by running the following command. Just make sure the version you are removing is not currently active version.

To remove Node.js 10.12.0, type:

nvm uninstall 10.12.0 

Conclusion

This tutorial helped you to install and use NVM on Amazon Linux system. Also, you learned about basic uses nvm command line utility.

The post How To Install NVM on Amazon Linux appeared first on TecAdmin.

Why NVM ?

Node Version Manager has multiple benefits, Like:

• Use nvm to install multiple node versions on single system. Also switch node version any time with single command
• It allowed users to install any specific node version instead of latest version.
• The node installed using nvm is for specific user. It create .nvm directory under user home directory and keep everythink inside it

Installing NVM on CentOS 8

A shell script is available for the installation of nvm on the CentOS 8 or RHEL 8 Linux system. Open a terminal on your system or connect a remote system using SSH. Use the following commands to install curl on your system, then run the nvm installer script.

sudo dnf install curl  
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash   

This creates a .nvm directory under the home directory. Where nvm keeps own binary file and all other required files. Then it sets environment in users .bashrc file. You need to load this environment to set required configuration by running the following command:

source ~/.bashrc

Installing Node with NVM

Nvm allows to install multiple node versions on a single system or the logged in user. Execute below command to view a list of available node versions.

nvm ls-remote 

Then, install the required node version using the following command.

nvm install 12.19.0 

Here you change 12.19.0 with your required version like 11.15.0, 10.11.0, etc.

It also provided alias for the latest stable node version, LTS version and other previous LTS version.

nvm install node        # Install latest stable version 
nvm install lts/*       # Install latest lts version 

You can also use lts/dubnium, lts/carbon etc to install other nodejs LTS versions.

Working with NVM

Here is some frequently used commands with nvm:

• List all the installed node versions for the current user

  nvm ls 
  

• To list all the available version’s for the installation on your system.

  nvm ls-remote 
  

• Switch to other installed node version for the current session. The new version will be the default version for current shell only

  nvm use 12.19.0
  

• Find the default Node version set for the current user, type:

  nvm run default --version 
  

• Run a script file with specific node version using exec option. This will not change the shell version.

  nvm exec 12.19.0 server.js 
  

Uninstall Specific Node Version with NVM

You can remove any unused version by running the following command. Just make sure the version you are removing is not currently active version.

To remove node.js 5.9.0 from your account, type:

nvm uninstall 5.9.0 

Conclusion

In this tutorial, you have learned to install nvm and node on CentOS 8 Linux system.

The post How To Install NVM on CentOS/RHEL 8 appeared first on TecAdmin.

In this tutorial, you will learn a simple process of specifying node.js version using .nvmrc file.

Using .nvmrc

Create a .nvmrc file containing a node version number in your project. You can use the nvm —-help to check other options. After that you can simply run commands like nvm use, nvm install and nvm run etc. This will the default node.js version defined in .nvmrc file.

For example, to make nvm default to use 12.10, or the latest LTS version, or the latest available node version. Use once of the below commands.

1. Use specific node version, like: 12.10

   echo "12.10" > .nvmrc 
   

2. Set latest LTS node version as default

   echo "lts/*" > .nvmrc 
   

3. Set latest node version as default

   echo "node" > .nvmrc 
   

After setting the default node version, use nvm use command to set default node version found in .nvmrc. Similarly if specified node version is not installed simply run nvm install.

nvm use
nvm install

The above commands will traverse directory structure upwards from the current directory looking for the .nvmrc file. In other words, once you set the node version with .nvmrc, can run nvm commands from any sub directory of the application.

The post Using .nvmrc to Specify Node Version appeared first on TecAdmin.