UbuntuにrbenvをインストールしてRubyを使えるようにしたい。 手順メモ。
インストール
rbenv-installer
を使う
$ wget -q https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer -O- | bash
PATHに .rbenv/bin
を追加
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile $ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile $ source ~/.bash_profile
rbenv-doctorで確認
$ wget -q https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor -O- | bash Checking for `rbenv' in PATH: /home/ubuntu/.rbenv/bin/rbenv Checking for rbenv shims in PATH: OK Checking `rbenv install' support: /home/ubuntu/.rbenv/plugins/ruby-build/bin/rbenv-install (ruby-build 20200214-3-g92fa223) Counting installed Ruby versions: none There aren't any Ruby versions installed under `/home/ubuntu/.rbenv/versions'. You can install Ruby versions like so: rbenv install 2.2.4 Checking RubyGems settings: OK Auditing installed plugins: OK
Ruby versions
が none
になっている。
Rubyのバージョン切り替え
# インストール時にエラー出る場合には以下を足す $ sudo apt-get install build-essential libssl-dev libreadline-dev zlib1g-dev $ rbenv install 2.6.5 $ rbenv global 2.6.5 $ ruby -v ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-linux]
確認
$ wget -q https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor -O- | bash Checking for `rbenv' in PATH: /home/ubuntu/.rbenv/bin/rbenv Checking for rbenv shims in PATH: OK Checking `rbenv install' support: /home/ubuntu/.rbenv/plugins/ruby-build/bin/rbenv-install (ruby-build 20200214-3-g92fa223) Counting installed Ruby versions: 1 versions Checking RubyGems settings: OK Auditing installed plugins: OK