rng added

bin/rnd

@@ -0,0 +1,8 @@
+#!/usr/bin/env ruby
+
+def generate_code(number)
+  charset = Array('A'..'Z') + Array('a'..'z') + Array(0 .. 9)
+  Array.new(number) { charset.sample }.join
+end
+
+20.times {puts generate_code(20)}

bin/rnd2.rb

@@ -0,0 +1,44 @@
+#!/usr/bin/env ruby
+
+require 'optparse'
+
+options = {}
+
+opt_parser = OptionParser.new do |opt|
+  opt.banner = "Usage: rnd2 COMMANDS [OPTIONS]"
+  opt.separator  ""
+  opt.separator  "Commands"
+  opt.separator  "     generate: generate a random string containing alphanumeric chars"
+  opt.separator  ""
+  opt.separator  "Options"
+
+  opt.on("-l","--length LENGTH","how long should the generated string be") do |length|
+    options[:length] = length
+  end
+
+  opt.on("-c","--count COUNT","how many times should the string be generated") do |count|
+    options[:count] = count
+  end
+
+  opt.on("-h","--help","help") do
+    puts opt_parser
+  end
+
+end
+
+opt_parser.parse!
+
+length = options[:length] || 8
+count = options[:count] || 1
+
+def generate_code(number)
+  charset = Array('A'..'Z') + Array('a'..'z') + Array(0 .. 9)
+  Array.new(number) { charset.sample }.join
+end
+
+case ARGV[0]
+when "generate"
+  count.to_i.times{ puts generate_code length.to_i }
+else
+  puts opt_parser
+end