Installing Ruby 2.2 on Centos7

准备做redis-cluster，需要ruby2.2环境   开整 环境：Centos7.2最小安装 yum源：阿里的base和epel源   ********************************************************************************* Install Dependencies ********************************************************************************

yum -y groupinstall "Development Tools"
yum -y install gdbm-devel libdb4-devel libffi-devel libyaml libyaml-devel ncurses-devel openssl-devel readline-devel tcl-devel

  ********************************************************************************* Download and Build Ruby from Source ********************************************************************************

mkdir -p rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS}

wget ht||||tp://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.3.tar.gz -P rpmbuild/SOURCES

wget ht||||tps://raw.githubusercontent.com/tjinjin/automate-ruby-rpm/master/ruby22x.spec -P rpmbuild/SPECS

# 下载的时候把http中间的竖线去掉，赵班长这里不能发外部连接

rpmbuild -bb rpmbuild/SPECS/ruby22x.spec

yum -y localinstall rpmbuild/RPMS/x86_64/ruby-2.2.3-1.el7.centos.x86_64.rpm

********************************************************************************* Test the Install ********************************************************************************

ruby -v
gem -v

  网上好多都是编译安装，坑太多，需要改ssl相关的代码 这个方法比较适合我这样的小白