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okabe-yuya/Speced-version-and-install-rails.md

Created May 7, 2020 02:40
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Speced-version-and-install-rails.md

install

現在のversionの確認

$ rails -v

install済みであればversionが表示され、installされていなければinstall方法の説明が表示される

versionを指定してのinstall(i はinstallのalias)

$ gem i -v 4.1.1 rails

appendix

install可能なversion一覧

$ gem list rails

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