Manpages - install.5

To publish and install packages to and from the public npm registry, you must install Node.js and the npm command line interface using either a Node version manager or a Node installer. We strongly recommend using a Node version manager to install Node.js and npm. We do not recommend using a Node installer, since the Node installation process installs npm in a directory with local permissions and can cause permissions errors when you run npm packages globally.

• Checking your version of npm and Node.js #checking-your-version-of-npm-and-node-js
• Using a Node version manager to install Node.js and npm #using-a-node-version-manager-to-install-node-js-and-npm
• Using a Node installer to install Node.js and npm #using-a-node-installer-to-install-node-js-and-npm

To see if you already have Node.js and npm installed and check the installed version, run the following commands:

    node -v
    npm -v

Node version managers allow you to install and switch between multiple versions of Node.js and npm on your system so you can test your applications on multiple versions of npm to ensure they work for users on different versions.

• nvm https://github.com/creationix/nvm
• n https://github.com/tj/n

• nodist https://github.com/marcelklehr/nodist
• nvm-windows https://github.com/coreybutler/nvm-windows

If you are unable to use a Node version manager, you can use a Node installer to install both Node.js and npm on your system.

• Node.js installer https://nodejs.org/en/download/
• NodeSource installer https://github.com/nodesource/distributions . If you use Linux, we recommend that you use a NodeSource installer.

If you’re using OS X or Windows, use one of the installers from the Node.js download page https://nodejs.org/en/download/ . Be sure to install the version labeled LTS . Other versions have not yet been tested with npm.

If you’re using Linux or another operating system, use one of the following installers:

• NodeSource installer https://github.com/nodesource/distributions (recommended)
• One of the installers on the Node.js download page https://nodejs.org/en/download/

Or see this page https://nodejs.org/en/download/package-manager/ to install npm for Linux in the way many Linux developers prefer.

For more information on installing Node.js on a variety of operating systems, see this page https://nodejs.org/en/download/package-manager/ .