how to install Ruby in fedora code example

Example 1: ruby install on fedora

sudo -i
dnf install gcc-c++ patch readline readline-devel zlib zlib-devel \
    libyaml-devel libffi-devel openssl-devel make \
    bzip2 autoconf automake libtool bison sqlite-devel

Example 2: ruby install on fedora

rvm list known