Generate crypto-random hex from command line because /dev/urandom isn't good enough for some reason

nonce.js

#!/usr/bin/env node
var crypto = require('crypto');

var chars = parseInt(process.argv[2], 10) || 32;
var blockSize = 1024 * 1024;

function sync(count) {
  console.log(crypto.randomBytes(Math.ceil(count / 2)).toString('hex').slice(0, count));
}

function more(remain) {
  if (remain <= blockSize)
    return sync(remain);
  crypto.randomBytes(blockSize / 2, function(err, data) {
    if (err) {
      console.error(err.message);
      return process.exit(1);
    }
    process.stdout.write(data.toString('hex'));
    more(remain - blockSize);
  });
}

more(chars);

It does appear to be a little faster than the bash solution I tested (which included converting to hex).