hyfather

package main

import (
	"log"
	"sync"
	"time"
)

func main() {
	log.Println("start")

hyfather

(require 'package)
(add-to-list 'package-archives
             '("marmalade" . "http://marmalade-repo.org/packages/") t)
(package-initialize)

;; Use Shift + <Arrow Keys> for moving between buffers
(windmove-default-keybindings)
(setq windmove-wrap-around t)

;; Because Shift-Up is broken on xterm

hyfather

% git push
Counting objects: 26, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (14/14), done.
Writing objects: 100% (15/15), 20.28 KiB, done.
Total 15 (delta 9), reused 0 (delta 0)
remote: /data/github/current/vendor/gems/ruby/1.8/gems/redis-2.2.0/lib/redis/connection/hiredis.rb:23:in `connect': Timeout::Error (Timeout::Error)
remote: 	from /data/github/current/vendor/gems/ruby/1.8/gems/redis-2.2.0/lib/redis/client.rb:204:in `establish_connection'
remote: 	from /data/github/current/vendor/gems/ruby/1.8/gems/redis-2.2.0/lib/redis/client.rb:23:in `connect'
remote: 	from /data/github/current/vendor/gems/ruby/1.8/gems/redis-2.2.0/lib/redis/client.rb:224:in `ensure_connected'

hyfather

#!/bin/bash
ssh-add
ssh $1 "mkdir -p .ssh && touch .ssh/authorized_keys && echo `ssh-add -L` >> .ssh/authorized_keys"

# keep this file in the PATH. like in /usr/bin.

hyfather

def factorize(list, num, p)
  while true
    list.each_with_index { |e, i| list[i] = 0 if e!=p && e%p == 0 }
    list.each{|e| p = e and break if e > p}
    if num % p == 0
#      p num                                                                                                                                                                                          
      return factorize(list[p..Math.sqrt(num/=p)], num, p)
    end
    return num if list.empty?
  end

hyfather

class Array
  def fibselect(&block)
    o, i, array = 0, 1, []
    while i < length
      o, i = i, i+o
      array << self[i]
    end
    array.compact.select &block
  end
end

hyfather

p [1..999].select{|e| e%3 == 0 || e%5 == 0}.inject(:+)

hyfather

#"Find the greatest product of five consecutive digits in the 1000-digit number."
# http://projecteuler.net/problem=8

big = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522\
74430435576689664895044524452316173185640309871112172238311362229893423380308135336276614282806444486645238749303589072962904915604407723907138105158593079608667017242712188399879790879227492190169\
97208880937766572733300105336788122023542180975125454059475224352584907711670556013604839586446706324415722155397536978179778461740649551492908625693219784686224828397224137565705605749026140797296\
86524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054\
4217506941658960408071984038509624554443629812309878799272442849091888458015616609791913387549920052406368991

hyfather

M stands for the Meta key. Commonly represented by the Alt/Option/Esc key on your keyboard.
C stands for the Control key.
Example -- C-k means 'hit k while keeping Control pressed.'

M-.
Yank the last argument to the previous command.

M-C-y
Yank the first argument to the previous command.

hyfather

[{:a => 'alpha'}, {:b => 'beta'}, {:c => 'charlie'}].map(&:to_a)
#=> [[[:a, "alpha"]], [[:b, "beta"]], [[:c, "charlie"]]]

flat_array = [{:a => 'alpha'}, {:b => 'beta'}, {:c => 'charlie'}].map(&:to_a).flatten
#=> [:a, "alpha", :b, "beta", :c, "charlie"]

Hash[*flat_array]
#=> {:a=>"alpha", :b=>"beta", :c=>"charlie"}