CentOS 7.9にRuby 2.7.5をインストールする
環境
# cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)
Rubyのインストールの方法
1.必要なパッケージをインストールします
# sudo yum -y install git bzip2 gcc gcc-c++ openssl-devel readline-devel zlib-devel
2.rbenvをインストールします
# git clone https://github.com/sstephenson/rbenv.git ~/.rbenv Cloning into '/root/.rbenv'... remote: Enumerating objects: 2993, done. remote: Counting objects: 100% (97/97), done. remote: Compressing objects: 100% (75/75), done. remote: Total 2993 (delta 51), reused 43 (delta 22), pack-reused 2896 Receiving objects: 100% (2993/2993), 602.00 KiB | 0 bytes/s, done. Resolving deltas: 100% (1860/1860), done.
ruby-buildプラグインをインストールします
# git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build Cloning into '/root/.rbenv/plugins/ruby-build'... remote: Enumerating objects: 11955, done. remote: Counting objects: 100% (648/648), done. remote: Compressing objects: 100% (256/256), done. remote: Total 11955 (delta 416), reused 536 (delta 346), pack-reused 11307 Receiving objects: 100% (11955/11955), 2.52 MiB | 0 bytes/s, done. Resolving deltas: 100% (7883/7883), done.
確認
# ls ~/.rbenv/plugins/ruby-build/bin rbenv-install rbenv-uninstall ruby-build
環境パスを「.bash_profile」に追加します
# echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile # echo 'eval "$(rbenv init -)"' >> ~/.bash_profile # exec $SHELL -l
3.rbenvバージョンを確認します
# rbenv --version rbenv 1.2.0-6-g304cb7b
4.インストールできるrubyのバージョンを確認します
# rbenv install --list 2.6.9 2.7.5 3.0.3 3.1.0 jruby-9.3.2.0 mruby-3.0.0 rbx-5.0 truffleruby-21.3.0 truffleruby+graalvm-21.3.0 Only latest stable releases for each Ruby implementation are shown. Use 'rbenv install --list-all / -L' to show all local versions.
5.ruby2.7.5をインストールします
# rbenv install 2.7.5 Downloading ruby-2.7.5.tar.bz2... -> https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.5.tar.bz2 Installing ruby-2.7.5... Installed ruby-2.7.5 to /root/.rbenv/versions/2.7.5
# rbenv global 2.7.5
rubyのバージョンを確認します
# ruby -v
ruby 2.7.5p203 (2021-11-24 revision f69aeb8314) [x86_64-linux]