Script to install Node Version Manager (NVM).

install-nvm.sh

#!/bin/bash

#https://github.com/nvm-sh/nvm/releases
NVM_VER="v0.40.3"

# Check if NVM is already installed
if [ -z "$(command -v nvm)" ] && [ -z "$NVM_DIR" ]; then

    echo "---- NVM Installation ----"

    # Check if curl is installed
    if [ ! -z "$(command -v curl)" ]; then
    	
        echo "Downloading nvm..."
        curl -o- "https://raw.githubusercontent.com/nvm-sh/nvm/${NVM_VER}/install.sh" | bash

        # Check if download and installation succeeded
        if [ "$?" -eq 0 ]; then
            echo "NVM installed successfully!"
            echo "Restart your SHELL Session."
        else
            echo "Error installing NVM."
            exit 1
        fi
    else
        echo "CURL Command not found. Install curl before proceeding with this script."
        exit 1
    fi
else
    echo "NVM is already installed. Sourcing NVM initialization script..."
    export NVM_DIR="$HOME/.nvm"
    [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
    nvm --version
fi

NVM Useful commands

---

1. List available Node Versions

nvm ls-remote

2. Install the Latest Version

nvm install --lts

3. Install specific NodeJS version

nvm install x.x.x

nvm install v18.20.5

4. Uninstall specific NodeJS version

nvm uninstall v18.20.5

5. List Installed Node versions

nvm ls

6. Set the default version

nvm alias default v20.12.2

7. Use specific version

nvm use v20.12.2