AWSのamazonlinuxのrvmでrubyとrails4インストールしてみました。 めんどくさいので全部root ``` yum -y install git

yum -y install make yum -y install gcc yum -y install gcc-c++ yum -y install zlib-devel yum -y install openssl-devel yum -y install httpd-devel yum -y install curl yum -y install curl-devel yum -y install readline-devel yum -y install tk-devel yum –enablerepo=epel -y install libyaml-devel

```