# real-executable-path

[![npm version](https://img.shields.io/npm/v/real-executable-path.svg)](https://www.npmjs.com/package/real-executable-path)
[![Build Status](https://travis-ci.org/shinnn/real-executable-path.svg?branch=master)](https://travis-ci.org/shinnn/real-executable-path)
[![Build status](https://ci.appveyor.com/api/projects/status/s8j59go8rxlkiq5c/branch/master?svg=true)](https://ci.appveyor.com/project/ShinnosukeWatanabe/real-executable-path/branch/master)
[![Coverage Status](https://img.shields.io/coveralls/shinnn/real-executable-path.svg)](https://coveralls.io/github/shinnn/real-executable-path)

Find the first instance of an executable in the PATH, with expanding all symbolic links

```javascript
const realExecutablePath = require('real-executable-path');
const which = require('which');

which('npm', (err, binPath) => {
  binPath; //=> '/usr/local/bin/npm'
});

realExecutablePath('npm').then(binPath => {
  binPath; //=> '/usr/local/lib/node_modules/npm/bin/npm-cli.js'
});
```

## Installation

[Use](https://docs.npmjs.com/cli/install) [npm](https://docs.npmjs.com/getting-started/what-is-npm).

```
npm install real-executable-path
```

## API

```javascript
const realExecutablePath = require('real-executable-path');
```

### realExecutablePath(*binName* [, *options*])

*binName*: `string` (an executable name in the PATH)  
*options*: `Object` ([`node-which` options](https://github.com/npm/node-which#options) except for `all`)  
Return: `Promise<string>`

It finds the first instance of the given executable in the [PATH](http://pubs.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap08.html#tag_08_03) environment variable, expands all symbolic links and resolves the canonicalized absolute pathname.

## Related projects

* [real-executable-paths](https://github.com/shinnn/real-executable-paths) – Returns all matched paths, instead of just the first one
* [real-which](https://github.com/shinnn/real-which) – CLI

## License

[ISC License](./LICENSE) © 2017 - 2018 Shinnosuke Watanabe