cupakromer

alias duf='du -sk * | sort -n | perl -ne '\''($s,$f)=split(m{\t});for (qw(K M G)) {if($s<1024) {printf("%.1f",$s);print "$_\t$f"; last};$s=$s/1024}'\'

cupakromer

require 'ap'
require 'csv'

class WifiManufacturer
  include Enumerable

  attr_reader :name, :oui_list

  def initialize(name, ouis)
    @name = name

cupakromer

Something we started doing just this week, and plan on continuing moving forward, is tackling "warm-up" problems. This reminds me of middle school math class. These are relatively simple programming problems that are solved via group-pairing.

Group-pairing is where the entire group participates in solving the problem. One person is designated as the coder. S/he displays her/his laptop on the conference room TV (via an Apple TV). The group then discusses the problem, and codes up a solution together.

cupakromer

Dir[File.expand_path('../formulas/**/*.rb', __FILE__)].each{|f| require f}

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class Test
  attr_accessor :my_var
  
  def set_name(name)
    self.my_var = name    # You must do this using just my_var = name would
                          # create a local variable with the name my_var
  end
  
  def say_hello
    puts "Hi #{my_var}"   # No need to say `self`. It is the implicit receiver

cupakromer

def remove_urls(filename)
  File.write filename, File.read(filename).gsub(/https?:\/\/[^\s'"]+/,'')
end

cupakromer

# The prime factors of 13195 are 5, 7, 13 and 29.
#
# What is the largest prime factor of the number 600851475143?
require 'prime'

def largest_prime(number)
  number.prime_division.map(&:first).max
end

describe "Problem 3: Largest prime factor" do

cupakromer

The idea is that the joiner will run as a master daemon, watching tshark and the processor which here is represented by std-reader. If either process is to die, the daemon will restart and re-join the FDs; this isn't implemented yet, but would be the end goal.

cupakromer

# /etc/init/my-daemon.conf

description "The Daemon"

start on runlevel [2345]
stop on runlevel [!2345]

expect daemon
respawn

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class SubstringMatcher
  def initialize(regexp)
    @regexp = regexp
  end

  def ==(actual)
    actual.to_s =~ @regexp
  end
end