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# OS

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] [![dependencies][dependencies-image]][dependencies-url]

> Standard library OS utilities.

<section class="installation">

## Installation

```bash
npm install @stdlib/os
```

</section>

<section class="usage">

## Usage

```javascript
var ns = require( '@stdlib/os' );
```

#### ns

Standard library OS utilities.

```javascript
var os = ns;
// returns {...}
```

The namespace contains a variety of OS-related utility methods:

<!-- <toc pattern="*" ignore="+(arch|num-cpus|platform|byte-order|float-word-order)" > -->

<div class="namespace-toc">

-   <span class="signature">[`configdir( [path] )`][@stdlib/os/configdir]</span><span class="delimiter">: </span><span class="description">return a directory for user-specific configuration files.</span>
-   <span class="signature">[`homedir()`][@stdlib/os/homedir]</span><span class="delimiter">: </span><span class="description">return the current user's home directory.</span>
-   <span class="signature">[`tmpdir()`][@stdlib/os/tmpdir]</span><span class="delimiter">: </span><span class="description">return the directory for storing temporary files.</span>

</div>

<!-- </toc> -->

In addition, it exports the following constants:

<!-- <toc pattern="+(arch|num-cpus|platform|byte-order|float-word-order)" > -->

<div class="namespace-toc">

-   <span class="signature">[`ARCH`][@stdlib/os/arch]</span><span class="delimiter">: </span><span class="description">operating system CPU architecture.</span>
-   <span class="signature">[`BYTE_ORDER`][@stdlib/os/byte-order]</span><span class="delimiter">: </span><span class="description">platform byte order.</span>
-   <span class="signature">[`FLOAT_WORD_ORDER`][@stdlib/os/float-word-order]</span><span class="delimiter">: </span><span class="description">platform float word order.</span>
-   <span class="signature">[`NUM_CPUS`][@stdlib/os/num-cpus]</span><span class="delimiter">: </span><span class="description">number of CPUs.</span>
-   <span class="signature">[`PLATFORM`][@stdlib/os/platform]</span><span class="delimiter">: </span><span class="description">platform on which the current process is running.</span>

</div>

<!-- </toc> -->

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- TODO: better examples -->

<!-- eslint no-undef: "error" -->

```javascript
var objectKeys = require( '@stdlib/utils/keys' );
var ns = require( '@stdlib/os' );

console.log( objectKeys( ns ) );
```

</section>

<!-- /.examples -->


<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2021. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[npm-image]: http://img.shields.io/npm/v/@stdlib/os.svg
[npm-url]: https://npmjs.org/package/@stdlib/os

[test-image]: https://github.com/stdlib-js/os/actions/workflows/test.yml/badge.svg
[test-url]: https://github.com/stdlib-js/os/actions/workflows/test.yml

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/os/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/os?branch=main

[dependencies-image]: https://img.shields.io/david/stdlib-js/os.svg
[dependencies-url]: https://david-dm.org/stdlib-js/os/main

[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
[chat-url]: https://gitter.im/stdlib-js/stdlib/

[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/os/main/LICENSE

<!-- <toc-links> -->

[@stdlib/os/arch]: https://www.npmjs.com/package/@stdlib/os/tree/main/arch

[@stdlib/os/byte-order]: https://www.npmjs.com/package/@stdlib/os/tree/main/byte-order

[@stdlib/os/float-word-order]: https://www.npmjs.com/package/@stdlib/os/tree/main/float-word-order

[@stdlib/os/num-cpus]: https://www.npmjs.com/package/@stdlib/os/tree/main/num-cpus

[@stdlib/os/platform]: https://www.npmjs.com/package/@stdlib/os/tree/main/platform

[@stdlib/os/configdir]: https://www.npmjs.com/package/@stdlib/os/tree/main/configdir

[@stdlib/os/homedir]: https://www.npmjs.com/package/@stdlib/os/tree/main/homedir

[@stdlib/os/tmpdir]: https://www.npmjs.com/package/@stdlib/os/tree/main/tmpdir

<!-- </toc-links> -->

</section>

<!-- /.links -->