A Bash script to automate the installation of Node.js and Node Version Manager (NVM) on an Ubuntu machine. This script simplifies the setup process for Node.js development environments.

install_node_nvm_ubuntu.sh

#!/bin/bash

# Script to install NVM (Node Version Manager), Node.js, and NPM on Ubuntu

echo "Starting installation of NVM, Node.js, and NPM on Ubuntu 22.04..."

# Check that the user is not running as root
if [ "$(id -u)" -eq 0 ]; then
    echo "This script should not be run as root or with sudo."
    exit 1
fi

# Update system package index
sudo apt update

# Install curl and build-essential packages which are required for NVM and Node.js
sudo apt install -y curl build-essential

# Use GitHub API to get the latest release version of NVM from its repository
NVM_VERSION=$(curl -s https://api.github.com/repos/nvm-sh/nvm/releases/latest | grep '"tag_name":' |  sed -E 's/.*"([^"]+)".*/\1/')

echo "Fetching the latest version of NVM: $NVM_VERSION"

# Download the NVM installation script from the project's GitHub repository
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/$NVM_VERSION/install.sh | bash

# Source the NVM script to ensure nvm command is available in the current session
export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"

# Restart the terminal or source your shell profile manually to update environment
echo "NVM has been installed. Close and reopen your terminal OR run 'source ~/.bashrc' (or equivalent) to use it."

# Install the latest version of Node.js using NVM
nvm install node

echo "The latest version of Node.js and NPM have been installed."

# Check the installed versions of Node.js and NPM
node_version=$(node -v)
npm_version=$(npm -v)

echo "Node.js version $node_version and NPM version $npm_version installed successfully."

# Instructions for usage:
# 1. Save this script as install_node_nvm_ubuntu.sh
# 2. Make the script executable with: chmod +x install_node_nvm_ubuntu.sh
# 3. Run the script: ./install_node_nvm_ubuntu.sh

# Note:
# - This script should not be run as root/sudo as it may cause permission issues.
# - Ensure that you have administrative privileges on your system for packages installation and that you are connected to the internet.