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#!/usr/bin/env ruby
require 'trollop'
STDIN.set_encoding 'utf-8'
STDOUT.set_encoding 'utf-8'
opts = Trollop::options do
banner "sample --size <n> < <line separated data>"
opt :size, "Sample n% (percentage).", :type => :int
end
prng = Random.new(Random.new_seed)
while line = STDIN.gets
STDOUT.write line if prng.rand(1..opts[:size])==0
end
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