WNut42

#!/usr/bin/env bash
# repository
cd /tmp
wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -Uvh epel-release-6-8.noarch.rpm

# system update
yum -y update
yum -y groupinstall "Development Tools"
yum -y install libxslt-devel libyaml-devel libxml2-devel gdbm-devel libffi-devel zlib-devel openssl-devel libyaml-devel readline-devel curl-devel openssl-devel pcre-devel git memcached-devel valgrind-devel mysql-devel ImageMagick-devel ImageMagick

WNut42

Tmux 快捷键 & 速查表

启动新会话：

tmux [new -s 会话名 -n 窗口名]

恢复会话：

tmux at [-t 会话名]

WNut42

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

• add_column
• add_index
• change_column
• change_table
• create_table
• drop_table

WNut42

#!/usr/bin/env ruby

# From my blog post at http://www.postal-code.com/binarycode/2009/06/06/better-range-intersection-in-ruby/

class Range
  def intersection(other)
    raise ArgumentError, 'value must be a Range' unless other.kind_of?(Range)

    my_min, my_max = first, exclude_end? ? max : last
    other_min, other_max = other.first, other.exclude_end? ? other.max : other.last

WNut42

# FlashSessionCookieMiddleware
#   passing your session in the URI, when it should be in the cookie
# 
#
# By Bert Goethals: (https://www.twitter.com/bertgoethals)
# Based on code by Rob Anderton (http://thewebfellas.com/blog/2008/12/22/flash-uploaders-rails-cookie-based-sessions-and-csrf-rack-middleware-to-the-rescue)
#
# This code has no licence what so ever, you are free to use it how you want, as
#   long as you don't blame me when your code breaks.
#