# getegid > Return the effective numeric group identity of the calling process.

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

## 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 [getegid(2)][getegid].

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

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