pietern

# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Update 7 Oct 2010:
# - This example does *not* appear to work with Chrome >=6.0. Apparently,
#   the WebSocket protocol implementation in the cramp gem does not work
#   well with Chrome's (newer) WebSocket implementation.
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby

fernandoaleman

## Configure eth0
#
# vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static

JosephPecoraro

# Ways to execute a shell script in Ruby
# Example Script - Joseph Pecoraro

cmd = "echo 'hi'" # Sample string that can be used

# 1. Kernel#` - commonly called backticks - `cmd` 
# This is like many other languages, including bash, PHP, and Perl
#   Synchronous (blocking)
#   Returns the output of the shell command
#   Docs: http://ruby-doc.org/core/classes/Kernel.html#M001111

gavinheavyside

require 'rubygems'
require 'sinatra'

require 'fileutils'

# upload with:
# curl -v -F "data=@/path/to/filename"  http://localhost:4567/user/filename

post '/:name/:filename' do
  userdir = File.join("files", params[:name])

bobbyno

#
#!optional
#!rest
#(
#\
#\altmode
#\backnext
#\backspace
#\call
#\linefeed

jordelver

Set the Mac OS X SOCKS proxy on the command line

a.k.a. what to do when your ISP starts blocking sites :(

Set the SOCKS proxy to local SSH tunnel

networksetup -setsocksfirewallproxy "Ethernet" localhost 8080

To clear the domain and port

sandys

# run using ```rvm jruby-1.6.7 do  jruby "-J-Xmx2000m" "--1.9" tej.rb```

require 'rubygems'
require 'nokogiri'
require 'csv'

f = File.open("/tmp/preview.html")
doc = Nokogiri::HTML(f)
csv = CSV.open("/tmp/output.csv", 'w',{:col_sep => ",", :quote_char => '\'', :force_quotes => true})

illy

前陣子一直打算謝謝markdown寫作，拖到現在被這位老兄搶了先，很不錯的介紹文章：[为什么Markdown+R有较大概率成为科技写作主流？]（http://www.douban.com/note/220903450/）.所以我就不再重複了，此文打算用問答的形式介紹下markdown對於文科寫作的意義[^ft]。

###1. 什麼是markdown？

markdown是一種輕量化的標記語言。大家所熟知的標記語言還有latex，lyx， XML，HTML，這類文本的特點就是你在編輯時可以使用各種tag來控制文本的格式。話說回來，mac下的pages，M$的docx也都時XML文檔，只是你在編輯的時候，不需要加入tag，軟件本身替你增加tag了。

這類語言最大的好處就是在編輯時，你可以很大程度的減少格式對於文本的干擾。你想啊，打開一個word文檔，你調個文字大小，設置個 加粗，二號標題，再來個 斜體 什麼的, 時間大半過去了。而標記語言的最大優勢在於，你只要使用系統能夠識別的tag就可以非常方便地控制這些格式。比如markdown，你可以先使用系統默認的那些tag來寫作，等到最後輸出的時候，配置下css模版即可。

markdown是各種標記語言中的小兄弟，一來是因為它年輕，二來因為它非常輕量化。md是 John Gruber 和 Aaron Swartz 最初發明的，廣泛用於技術文檔的寫作。它的最大優勢在於人機皆可讀 （machine-readble, human-readble)。

andkerosine

$stack, $draws = [], {}

def method_missing *args
  return if args[0][/^to_/]
  $stack << args.map { |a| a or $stack.pop }
  $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end

class Array
  def +@

pmarreck

# Get Sublime to use your rvm ruby... Change your ~/Library/Application Support/Sublime Text 2/Packages/Ruby/Ruby.sublime-build 
# (for ST3: ~/Library/Application Support/Sublime Text 3/Packages/User/Ruby.sublime-build) to this, replacing YOURUSERNAME.
# I am still looking to optimize this further... For example, avoiding hardcoding by using something like $HOME, although
# I have yet to get any form of that to work.

{
  "working_dir": "${project_path}",
  "cmd": [
    "/Users/YOURUSERNAME/.rvm/bin/rvm-auto-ruby", "-Ilib:test", "$file"
  ],