# ENV
> Object containing the user environment.
## Usage
```javascript
var ENV = require( '@stdlib/process/env' );
```
#### ENV
`Object` containing the user environment.
```javascript
var user = ENV.USER;
// returns
```
## Notes
- See [environ(7)][man-environ].
- Modifications to `ENV` are local to the process in which `ENV` is modified.
- On Windows systems, environment variables are case insensitive.
- In browser environments, `ENV` is an **empty** object.
- Be careful when modifying environment variables as the environment variable object represents shared state. Accordingly, modifications affect all environment variable consumers.
## Examples
```javascript
var ENV = require( '@stdlib/process/env' );
console.dir( ENV );
```
[man-environ]: http://man7.org/linux/man-pages/man7/environ.7.html