Here are the steps, in detail ...
Install Node.js from https://nodejs.org/en/download/
Update to the latest version of npm
npm install npm -gMake a new folder for the npm global packages
mkdir ~/.npm-packagesTell npm where to find/store them
npm config set prefix ~/.npm-packagesVerify the install
# this should show the versions
node -v
npm -v
- Make a folder for your npm packages and tell your computer about it.
mkdir "${HOME}/.npm-packages"
echo NPM_PACKAGES="${HOME}/.npm-packages" >> ${HOME}/.bashrc
echo prefix=${HOME}/.npm-packages >> ${HOME}/.npmrc
echo NODE_PATH=\"\$NPM_PACKAGES/lib/node_modules:\$NODE_PATH\" >> ${HOME}/.bashrc
echo PATH=\"\$NPM_PACKAGES/bin:\$PATH\" >> ${HOME}/.bashrc
echo source "~/.bashrc" >> ${HOME}/.bash_profile
source ~/.bashrc
ENJOY!
