examples/gen_random_data.av

## examples/gen_random_data.av
## A script to generate random numbers to files in /tmp dir.
## They can be sorted by examples/sort_files.av .

use java.io.File;

let io = require('io');
let files = count(ARGV) == 0 ? 5 : long(ARGV[0]);
let nums = count(ARGV) < 2? 1000 : long(ARGV[1]);
let temp_dir = "/tmp";

for i  in range(0, files) {
  let file = "#{temp_dir}#{File.separator}data.#{i}";
  let writer = io.writer(io.file(file));
  for j in range(0, nums) {
    write(writer, "#{rand(100000000)}\r\n");
  }
  io.close(writer);
  p("Generate #{nums} random numbers to file #{file}");
}