ahjesus ubuntu10.4安装ruby2.1.1

sudo apt-get install python-software-properties
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get install ruby2.1

ruby2.1 -v
ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux-gnu]