ecleel

require 'matrix'
require 'pp'

a = Matrix[ [1,2], [3,4]]
b = Matrix[ [4,3], [2,1]]


pp a
pp b

ecleel

require 'net/ssh'

host = IO.readlines('test1.txt') # full path of servers' list
port = 22       # SSH port
user = 'root'       # username
pass = "123123" # password
i    = 0

begin
  cmd = ["sudo /sbin/ip addr | grep mtu | grep -v lo | awk '{print $2}'",   # Interfaces

ecleel

# DictOptions is OrderedOptions copy for python.
# Basic idea: insted of use dict like this d['key'] = value use it as proprties d.key = value
#
# Examples:
# config = DictOptions()
# config.app_name = "Dictionary Test"
# config.database = "mysql"
# config.server = DictOptions()
# config.server.processes = 5
# ...

ecleel

class Node
  attr_accessor :dad, :name
  
  def initialize(name='', dad=nil)
    @name, @dad = name, dad
  end
  
  def inspect
    "My dad is #{@dad} "
  end

ecleel

Why Rails fit our needs?¶ ↑

• Ruby!

• With Rails you focus on delivering value to your users. => Dave Thomas

• Active Record {:amazing_syntax, :migration, }

• Fast development => {:plugins, :generators}

• Easy deploy => Capistrano

• Convention over Configuration

• Less code

• Work agile

ecleel

require 'date'

def season(date)
  case date.yday
  when 80..202 then "Spring"
  when 203..264 then "Summer"
  when 265..355 then "Autumn"
  else 
    "Winter"
  end

ecleel

require 'csv'
require 'json'

require 'itunes-search-api'
require 'market_bot'

query = ARGV.first

puts query