ubuntu 11.04上升级ruby到1.9版本

#!/bin/bash
sudo apt-get -y install zlib1g-dev libssl-dev libreadline5-dev libyaml-dev build-essential  bison checkinstall
cd /tmp
wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-p290.tar.gz
tar xvzf ruby-1.9.2-p290.tar.gz
cd ruby-1.9.2-p290 www.2cto.com
./configure --prefix=/usr/
            --program-suffix=1.9.2/
            --with-ruby-version=1.9.2/
            --disable-install-doc
make
sudo checkinstall -D -y/
                  --fstrans=no/
                  --nodoc/
                  --pkgname='ruby1.9.2'/
                  --pkgversion='1.9.2-p290'/
                  --provides='ruby'/
                  --requires='libc6,libffi5,libgdbm3,libncurses5,libreadline5,openssl,libyaml-0-2,zlib1g'/
                  --maintainer=murrain@gmail.com
sudo update-alternatives --install /usr/bin/ruby ruby /usr/bin/ruby1.9.2 500/
                        --slave   /usr/bin/ri   ri   /usr/bin/ri1.9.2/
                        --slave   /usr/bin/irb  irb  /usr/bin/irb1.9.2/
                        --slave   /usr/bin/gem  gem  /usr/bin/gem1.9.2/
                        --slave   /usr/bin/erb  erb  /usr/bin/erb1.9.2/
                        --slave   /usr/bin/rdoc rdoc /usr/bin/rdoc1.9.2

摘自：一不小心高潮了