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 cheatsheet

---

1. Version Management

• List available versions

nvm ls-remote

• List installed versions

nvm ls

• Install a specific version

nvm install <version>

• Install the latest version

nvm install node

• Install the latest LTS version

nvm install --lts

2. Using Node.js Versions

• Use a specific version

nvm use <version>

• Set default version

nvm alias default <version>

• Unset default version

nvm unalias default

3. Uninstalling Versions

nvm uninstall <version>

4. Current Version Information

• Show current version

nvm current

• Check NVM version

nvm --version

5. Cache Management

• Clear NVM cache

nvm cache clear

6. Alias

• Create an alias for a version

nvm alias <alias-name> <version>

• List all aliases

nvm alias

7. Environment Variables

• Set the NVM_DIR environment variable

export NVM_DIR="$HOME/.nvm"