在ubuntu上安装Rails开发环境（转载）

ubuntu上安装rails环境走了不少弯路，今天在网上搜到一个安装脚步，转载一下。

sudo apt-get install build-essential gcc g++ libssl0.9.8 libssl0.9.8-dbg libssl-dev build-essential
sudo apt-get install ruby
sudo apt-get install libzlib-ruby rdoc ri irb ruby1.8-dev
sudo apt-get install libzlib-ruby
sudo apt-get install rubygems
sudo gem update --system
sudo gem install rails -y
sudo gem install rails --include-dependencies
sudo gem install mongrel -y
sudo gem install mongrel_cluster --include-dependencies
sudo apt-get install libopenssl-ruby
sudo apt-get install libgd-ruby1.8 libyaml-ruby libzlib-ruby
sudo apt-get install imagemagick
sudo apt-get install libmagick9-dev ruby1.8-dev
sudo gem install RMagick  -y