82 lines
1.6 KiB
Markdown
82 lines
1.6 KiB
Markdown
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@license Apache-2.0
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Copyright (c) 2018 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# geteuid
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> Return the effective numeric user identity of the calling process.
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<section class="usage">
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## Usage
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```javascript
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var geteuid = require( '@stdlib/process/geteuid' );
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```
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#### geteuid()
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Returns the effective numeric user identity of the calling process.
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```javascript
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var id = geteuid();
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```
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</section>
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<!-- /.usage -->
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<section class="notes">
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## Notes
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- The function **only** returns an `integer` user identity on POSIX platforms. For all other platforms (e.g., Windows, browsers, and Android), the function returns `null`.
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- See [geteuid(2)][geteuid].
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</section>
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var geteuid = require( '@stdlib/process/geteuid' );
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var uid = geteuid();
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if ( uid === 0 ) {
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console.log( 'Effectively running as root.' );
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} else {
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console.log( 'uid: %d', uid );
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}
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```
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</section>
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<!-- /.examples -->
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<section class="links">
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[geteuid]: http://man7.org/linux/man-pages/man2/geteuid.2.html
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</section>
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<!-- /.links -->
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