Ruby Terminal Progress Bar Example

terminal_progress_bar.rb

progress = 'Progress... ['
1000.times do |i|
  j = i + 1

  # add 1 percent every 10 times
  if j % 10 == 0
    progress << "="
    print "\r"
    print progress + " #{j / 10} %]"

    # Force to flush the buffer so that the output appears immediately..
    $stdout.flush
    sleep 0.1
  end
end

puts "\nFinish!!"