andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

alishutc

def login(username, password)
  page.visit("http://#{username}:#{password}@#{page.driver.rack_server.host}:#{page.driver.rack_server.port}/")
end

maca

#! /usr/bin/env ruby
# usage: 
# $ das_download.rb email password [download_directory]

require 'mechanize'
# gem 'mechanize-progressbar'

email    = ARGV[0] or raise('Please provide the email address for your account')
password = ARGV[1] or raise('Please provide the password for your account')
path     = ARGV[2] || './' 

p8

class Lisp
  Fs = {
    :label => lambda {|name,value|  Fs[name] = lambda { value } },
    :car =>   lambda {|sexp|        sexp.first },
    :cdr =>   lambda {|sexp|        sexp.slice(1, sexp.size) },
    :cons =>  lambda {|head,tail|   [head] + tail },
    :atom =>  lambda {|sexp|        !sexp.is_a?(Array)  },
    :eq =>    lambda {|a,b|         a == b },
    :if =>    lambda {|cnd,thn,els| cnd ? thn : els }
  }

raggi

require 'sinatra'
require 'eventmachine'

get '/' do
  stream(:keep_open) do |out|
    count = 0
    timer = EM.add_periodic_timer(1) do
      out << "<p>ohai</p>\n"
      count += 1
      if count == 10

moomerman

#!/usr/bin/env ruby
require 'rubygems'
require 'rotp'
require 'time'

user = ARGV[0]
secret = ARGV[1]
abort unless user and secret

trap("INT") do

jcasimir

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

chriseppstein

This gist is no longer valid. Please see Compass-Rails for instructions on how to install.

jmazzi

require 'mechanize'

@username      = 'user@domain.com'
@password      = 'hi2u'
@download_path = File.expand_path 'downloads'
@wget_cookie   = File.expand_path(File.dirname(__FILE__)) + '/wget-cookies.txt'

unless File.directory? @download_path
  puts "@{download_path} doesn't exist!"
  exit

miyucy

require 'ostruct'

class OpenStruct
  DEPTH = 5
  def self.deep(data, depth=0, &blck)
    return data if depth > DEPTH
    return data unless data.class == Hash
    hash = {}
    data.each do |key, value|
      key = blck.call(key) if block_given?