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$ cd ~/.rbenv/plugins/ruby-build
$ git pull origin master


$ rbenv install 2.1.3
$ rbenv global 2.1.3
$ rbenv rehash
$ ruby -v
ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-darwin13.0]
Software Enginner / 興味: Ruby, Rails, Python, Java, Scala, C++, AI, NLP, ML, NoSQL / アジャイル開発
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