可以通过brew
官方提供了运行脚本
# with curl
curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer | bash
?
# alternatively, with wget
wget -q https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer -O- | bash
# with curl
curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash
?
# alternatively, with wget
wget -q https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor -O- | bash
对于使用shell脚本安装的需要配置环境变量，安装完成之后会有提示
https://github.com/rbenv/rbenv-installer
原文：https://www.cnblogs.com/rongfengliang/p/11104665.html