#!/usr/bin/env ruby require 'team_effort' def do_cmd(cmd) `#{cmd}` raise "'#{cmd}' failed with #{status}" if !$?.success? end csv_file = ARGV[0] lines = ARGV[1] csv_file_name = File.basename(csv_file) system "ghead -n 1 #{csv_file} > #{csv_file_name}_header" system "gtail -n +2 #{csv_file} | gsplit -l #{lines} -a 3 - #{csv_file_name}_" files = Dir.entries(".").reject { |f| f =~ %r{^(\.\.?|stdout|stderr)$} } TeamEffort.work(files, 1) do |file| tmp_file = "tmp_#{file}" do_cmd "gcat #{csv_file_name}_header #{file} >> #{tmp_file}" do_cmd "mv #{tmp_file} #{file}" end do_cmd "rm #{csv_file_name}_header" puts ""