ubuntu10.10下安装rails环境
源： http://ruby.about.com/od/rubyversionmanager/ss/installrvmlinux.htm。
$ sudo apt-get install build-essential$ sudo apt-get install curl$ sudo apt-get install zlib1g-dev libreadline5-dev libssl-dev libxml2-dev$ sudo apt-get install ruby1.8 rubygems1.8$ sudo gem install rvmJust open .bashrc in a text editor and copy and paste from the terminal window.$ /var/lib/gems/1.8/bin/rvm-install?
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