Biopieces.open(options[:stream_in], options[:stream_out]) do |input, output|
input.each_record do |record|
if record[:SEQ] and record[:SEQ].length >= options[:size]
Biopieces.open(options[:stream_in], options[:stream_out]) do |input, output|
input.each_record do |record|
if record[:SEQ] and record[:SEQ].length >= options[:size]