centos 6.2安装ruby

#get root access
$su -
$ cd /tmp
 
#Remove old Ruby
$ yum remove ruby
 
# Install dependencies
$ yum groupinstall "Development Tools"
$ yum install zlib zlib-devel
$ yum install openssl-devel
$ wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz
$ tar xzvf yaml-0.1.4.tar.gz
$ cd yaml-0.1.4
$ ./configure
$ make
$ make install
 
# Install ruby
# 使用toabao的源, 在天朝的环境里你才能安装上
$ wget http://ruby.taobao.org/mirrors/ruby/ruby-1.9.3-p362.tar.gz
$ tar zxf ruby-1.9.3-p362.tar.gz
$ cd ruby-1.9.3-p362
$ ./configure
$ make
$ make install
 

#修改源指向taobao的
$ gem sources -r https://rubygems.org/
$ gem sources -a http://ruby.taobao.org/
$ gem sources -l
# 请确保只有 ruby.taobao.org

# Update rubygems
$ gem update --system
$ gem install bundler
 
#Test ruby and rubygems are working
#Close shell and reopen for changes to take effect
$ruby -v
$gem --version
 
# Rails
$ yum install sqlite-devel
$ gem install rails
$ gem install sqlite3

-------------------常用的gem source-----

显示当前使用的sources
gem sources

添加一个source
gem sources -a url地址

删除一个source
gem sources -r url地址

更新source cache
gem sources -u