blob: b4706c6b02222c17947cf46af038df745f29dfb6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#!/usr/bin/env ruby
require 'trollop'
STDIN.set_encoding 'utf-8'
STDOUT.set_encoding 'utf-8'
def usage
STDERR.write "./sample --size <n> < <line separated data>\n"
exit 1
end
usage if ARGV.size!=4
opts = Trollop::options do
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
|
