# getgid > Return the numeric group identity of the calling process.

## Usage ```javascript var getgid = require( '@stdlib/process/getgid' ); ``` #### getgid() Returns the numeric group identity of the calling process. ```javascript var id = getgid(); ```

## Notes - The function **only** returns an `integer` group identity on POSIX platforms. For all other platforms (e.g., Windows, browsers, and Android), the function returns `null`. - See [getgid(2)][getgid].

## Examples ```javascript var getgid = require( '@stdlib/process/getgid' ); var gid = getgid(); console.log( 'gid: %d', gid ); ```

[getgid]: http://man7.org/linux/man-pages/man2/getgid.2.html