npm <command> [args]
It is extremely configurable to support a wide variety of use cases. Most commonly, it is used to publish, discover, install, and develop node programs.
npm help to get a list of available commands.
You probably got npm because you want to install stuff.
npm install blerg to install the latest version of "blerg". Check out
npm-install for more info. It can do a lot of stuff.
npm search command to show everything that's available.
npm ls to show everything you've installed.
If a package references to another package with a git URL, npm depends on a preinstalled git.
If one of the packages npm tries to install is a native node module and requires compiling of C++ Code, npm will use node-gyp for that task. For a Unix system, node-gyp needs Python, make and a buildchain like GCC. On Windows, Python and Microsoft Visual Studio C++ are needed. Python 3 is not supported by node-gyp. For more information visit the node-gyp repository and the node-gyp Wiki.
npm-folders to learn about where npm puts stuff.
In particular, npm has two modes of operation:
prefix/lib/node_modulesand bins are installed in
./node_modules, and bins are installed to
Local mode is the default. Use
--global on any command to
operate in global mode instead.
If you're using npm to develop and publish your code, check out the following help topics:
npm linkto do this.
npm publishcommand to upload your code to the registry.
npm is extremely configurable. It reads its configuration options from 5 places.
--key val. All keys take a value, even if they are booleans (the config parser doesn't know what the options are at the time of parsing). If no value is provided, then the option is set to boolean
npm_config_. For example,
userconfigoption is set in the cli or env, then that will be used instead.
globalconfigoption is set in the cli, env, or user config, then that file is parsed instead.
npm-config for much much more information.
If you would like to contribute, but don't know what to work on, read the contributing guidelines and check the issues list.
When you find issues, please report them:
Be sure to follow the template and bug reporting guidelines. You can also ask for help in the support forum if you're unsure if it's actually a bug or are having trouble coming up with a detailed reproduction to report.
Found a typo? Let us know!