Node.js text file parsing

// file example
// 2013-08-09T13:50:33.166Z A 2
// 2013-08-09T13:51:33.166Z B 1
// 2013-08-09T13:52:33.166Z C 6
// 2013-08-09T13:53:33.166Z B 8
// 2013-08-09T13:54:33.166Z B 5


var fs = require('fs');

// process.argv[2] = file path, for example textFile.txt
fs.readFile(process.argv[2], function(err, data) {
    if (err) throw err;

    var logData = data.toString().split('\n');
    var otherData = [];
    var sum = 0;

    for (var i = 0; i < logData.length; i++) {
        otherData[i] = logData[i].split(' ');
        sum += +otherData[i][2];
    };

    console.log(sum);
});