Installing Ruby on CentOS 7

Environment

• AWS
• CentOS Linux release 7.0.1406 (Core)

Install required modules

$ sudo yum -y install git libffi libffi-dev gcc openssl-devel readline-devel zlib-devel

Download rbenv and ruby-build

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

Set the rbenv PATH

$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ exec $SHELL
$ source ~/.bash_profile

$ rbenv install -list

Available versions:
   :
   :
  2.0.0-p643
  2.0.0-p645 ← latest 2.0.0 (as of 2015/08/06)
  2.1.0-dev
  2.1.0-preview1
  2.1.0-preview2
  2.1.0-rc1
   :

Install Ruby

$ rbenv install -v 2.0.0-p645

Reload

$ rbenv rehash

Switch to the installed version

$ rbenv global 2.0.0-p645

Verify

$ ruby -v
ruby 2.0.0p645 (2015-04-13 revision 50299) [x86_64-linux]

That’s all.