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| # 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 { |
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| require 'fileutils' | |
| start_time = Time.now | |
| SOURCE_DB = { | |
| :name => 'db_name', | |
| :user => 'db_user', | |
| :password => 'db_pass', | |
| :host => 'localhost' |
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| 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 |
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| require 'priority_queue' | |
| require 'set' | |
| class Node | |
| def initialize(x, y) | |
| @x = x | |
| @y = y | |
| @obstacle = false | |
| @g_score = Float::INFINITY | |
| end |
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| #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. |
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| 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 |
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| 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] } |
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| create a Procfile << app: ruby script/app | |
| rvmsudo foreman export upstart /etc/init -a app -u achaudhry |
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| sudo tcpdump -vi eth0 port 53 |
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| ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf("%0o ",k);print}' |