在CentOS安装ruby

+下载 wget ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p0.tar.gz wget http://production.cf.rubygems.org/rubygems/rubygems-2.0.3.tgz

+解压安装 tar zxvf ruby-2.0.0-p0.tar.gz cd ruby-2.0.0-p0 ./configure make make install

+安装rubygems tar zxvf rubygems-2.0.3.tgz cd rubygems-2.0.3 ruby setup.rb