Check if a Buffer/Uint8Array is a BZIP2 file
npm install is-bzip2> Check if a Buffer/Uint8Array is a BZIP2 file
``sh`
$ npm install --save is-bzip2
`js
var isBzip2 = require('is-bzip2');
var read = require('fs').readFileSync;
isBzip2(read('foo.bz2'));
// => true
``