CentOS7でrbenvを利用してrubyを入れる

TL;DR

CentOS 7でrbenvを使う
rbenv installを一発で通すための必要パッケージを入れる。
ruby最新版を入れる

install required packages

sudo yum install gcc
sudo yum install make

sudo yum install -y bison
sudo yum install -y autoconf

sudo yum search yaml
sudo yum install -y libyaml-devel

sudo yum search readline
sudo yum install -y readline-devel

sudo yum search gdbm
sudo yum install -y gdbm-devel

sudo yum search ffi
sudo yum install -y libffi-devel

sudo yum search zlib
sudo yum install -y zlib-devel

sudo yum search ssl
sudo yum install -y openssl-libs
sudo yum install -y openssl-devel

install rbenv

git clone https://github.com/rbenv/rbenv.git ~/.rbenv
cd ~/.rbenv && src/configure && make -C src

type rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile

cd ../

exec -l $SHELL

install ruby-build

git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

install ruby

rbenv install -l

rbenv install 2.3.1 -v

set default ruby version

rbenv global 2.3.1

ruby -v
# => ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux]