sudo aptitude update sudo aptitude install build-essential sudo aptitude install ruby1.8-dev ruby1.8 ri1.8 rdoc1.8 irb1.8 libreadline-ruby1.8 libruby1.8 libopenssl-ruby sudo aptitude install libssl-dev libreadline5-dev zlib1g-dev sudo ln -s /usr/bin/ruby1.8 /usr/local/bin/ruby sudo ln -s /usr/bin/ri1.8 /usr/local/bin/ri sudo ln -s /usr/bin/rdoc1.8 /usr/local/bin/rdoc sudo ln -s /usr/bin/irb1.8 /usr/local/bin/irb http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p249.tar.gz tar xzvf ruby-1.8.7-p249.tar.gz cd ruby-1.8.7-p249 ./configure make sudo make install […]