abdollar

# Load the rails application
require File.expand_path('../application', __FILE__)
require 'objspace'
require 'digest/md5'
require 'base64'

# Initialize the rails application
MyApp::Application.initialize!
objs = File.open("/tmp/objs.txt", 'w')
at_exit {

abdollar

delete from solr - delete by query

curl http://hostname:port/solr/update --data-binary '<delete><query>id:123456</query></delete>' -H 'Content-type:text/xml; charset=utf-8'

curl http://hostname:port/solr/update --data-binary '<commit waitFlush="false" waitSearcher="false" expungeDeletes="true"/>' -H 'Content-type:text/xml; charset=utf-8'

abdollar

abdollar

" copy all this into a vim buffer, save it, then...
" source the file by typing :so %
" Now the vim buffer acts like a specialized application for mastering vim

" There are two queues, Study and Known.  Depending how confident you feel
" about the item you are currently learning, you can move it down several
" positions, all the way to the end of the Study queue, or to the Known
" queue.

" type ,, (that's comma comma)

abdollar

require 'fileutils'

start_time = Time.now


SOURCE_DB = {
  :name => 'db_name',
  :user => 'db_user',
  :password => 'db_pass',
  :host => 'localhost'

abdollar

mv ~/.ssh/id_rsa ~/.ssh/id_rsa.old
openssl pkcs8 -topk8 -v2 des3 -in ~/.ssh/id_rsa.old -out ~/.ssh/id_rsa
chmod 600 ~/.ssh/id_rsa
rm ~/.ssh/id_rsa.old

abdollar

require 'priority_queue'
require 'set'

class Node
    def initialize(x, y)
        @x = x
        @y = y
        @obstacle = false
        @g_score = Float::INFINITY
    end

abdollar

#pos is the number of positive ratings
#n is the total number of ratings
def score_ratings(pos, n)
    #modified shamelessly from http://evanmiller.org/how-not-to-sort-by-average-rating.html
    return 0 if n == 0
    # require 'statistics2'
    # z = Statistics2.pnormaldist(1-(1-confidence)/2)
    # the z score refers to a confidence: pick 0.95 to have a 95% chance that your lower bound is correct, 0.975 to have a 97.5% chance, etc. 

abdollar

sudo tcpflow -c -n en1 src or dst host api.example.com


EM.run do
  request = EventMachine::HttpRequest.new('http://api.example.com/')
  deferrable = request.get :path => '/api/v2/chickens.json'
  deferrable.callback { puts "It worked"; EM.stop }
  deferrable.errback  { puts "It failed"; EM.stop }
end

abdollar

require 'bundler'
Bundler.require

url = 'http://0.0.0.0:9000/images/avatar.png'

EM.run do
  http = EventMachine::HttpRequest.new(url).get
  http.stream  {|chunk| print [:chunk, chunk.size] }
  http.headers {|h| p [:headers, h] }