yoava

// sort5 uses `sort -k3,3`, and process the response sent to stdout  
//////////////////////////////////////////////////////////////////////////////////////
var fs = require('fs'),
    util = require('util'),
    spawn = require('child_process').spawn,
    sort = spawn('sort', ['-k3,3', './input.txt']);

var start = Date.now();

var writer = fs.createWriteStream('out5.txt');

yoava

#!/usr/bin/env bash
sort -k 3,3 input.txt > out4.txt

yoava

// sort3 uses nedb, as suggested by Tamas Hegedus
//////////////////////////////////////////////////////////////////////////////////////
var fs = require('fs'),
    readline = require('readline');

var Datastore = require('nedb');
var db = new Datastore({
    filename: 'path/to/temp/datafile',
    autoload: true
});

yoava

// sort2 uses sort-stream, as suggested by Joe Krill
//////////////////////////////////////////////////////////////////////////////////////

var fs = require('fs');
var sort = require('sort-stream');
var parse = require('csv-parse');
var transform = require('stream-transform');

var start = Date.now();

yoava

// sort1 uses a straightforward approach, sorting the records in a in-memory array
//////////////////////////////////////////////////////////////////////////////////////

var fs = require('fs'),
    readline = require('readline'),
    stream = require('stream');

var start = Date.now();