CLI app for inflating files

inflate.js

#!/usr/bin/env node
var zlib = require('zlib');
var fs = require('fs');
var inflate = zlib.createInflate();

var input = process.stdin;
var output = process.stdout;

if (typeof process.argv[2] !== 'undefined') {
    input = fs.createReadStream(process.argv[2]);
}

input.pipe(inflate).pipe(output);