$ yum install gcc-c++ glibc-headers openssl-devel readline libyaml-devel readline-devel zlib zlib-devel $ git clone https://github.com/sstephenson/rbenv.git /usr/local/rbenv # <-※1 $ echo 'export RBENV_ROOT="/usr/local/rbenv"' >> /etc/profile # <-※2 $ echo 'export PATH="${RBENV_ROOT}/bin:${PATH}"' >> /etc/profile $ echo 'eval "$(rbenv init -)"' >> /etc/profile