<!-- @license Apache-2.0 Copyright (c) 2018 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> # ENV > Object containing the user environment. <section class="usage"> ## Usage ```javascript var ENV = require( '@stdlib/process/env' ); ``` #### ENV `Object` containing the user environment. ```javascript var user = ENV.USER; // returns <string> ``` </section> <!-- /.usage --> <section class="notes"> ## 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. </section> <!-- /.notes --> <section class="examples"> ## Examples <!-- eslint no-undef: "error" --> ```javascript var ENV = require( '@stdlib/process/env' ); console.dir( ENV ); ``` </section> <!-- /.examples --> <section class="links"> [man-environ]: http://man7.org/linux/man-pages/man7/environ.7.html </section> <!-- /.links -->