see [[nodejs]]

Error: EACCES: permission denied, access '/usr/local/lib/node_modules'

sudo chown -R rick:admin /usr/local/lib/node_modules

list all global packages without deps

$ npm list -g --depth=0
├── add-cors-to-couchdb@0.0.6
├── airsonos@0.2.6
├── cordova@7.0.0
├── heroku@0.2.0
├── ios-deploy@1.9.1
├── json@9.0.4
├── jspm@0.16.47
├── npm@4.2.0
└── serve@1.4.0

update npm itself

sudo npm install -g npm

npm check for updates

npm outdated

npm update packages

npm update

npm init creates package.json

npm init
npm install --save

install express and save it to package.json

npm install --save express

become owner of the /Users/you/.npm folder

sudo chown -R rick /Users/rick/.npm

npm install specific version

Use this syntax to install a specific version listed there:

sudo npm install -g phonegap@2.9.0-rc1-0.12.2
npm install gulp-sass@1.3.3 --save