The main npm command has a long list of subcommands for specific package management operations. These cover every aspect of the life cycle of publishing packages (as a package author), and downloading, using, or removing packages (as an npm consumer).
You can view the list of these commands just by typing npm (with no arguments). If you see one you want to learn more about, view the help information:
$ npm help <command> The help text will be shown on your screen. Or, see the website: http://docs.npmjs.com
