Rubyインストール

install ruby on mac

brew update
brew install rbenv ruby-build
rubyver=3.3.0
time CONFIGURE_OPTS="--disable-install-doc" rbenv install ${rubyver} && rbenv global ${rubyver}
gem update --system; gem update

install ruby on rhel with homebrew

brewを使う時、opensslをbrewでインストールする。dnfからインストールすると失敗する。

brew install rbenv ruby-build openssl

rubyver=3.3.0
time CONFIGURE_OPTS="--disable-install-doc" rbenv install ${rubyver} && rbenv global ${rubyver}
gem update --system; gem update

rbenv PATH通し

$HOME/.rbenv/binにパスを通した上で、initする。
.zshrc注意

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.zshrc
echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.zshrc 

install ruby on linux without brew

dnf -y install sudo
sudo dnf -y update
sudo dnf -y install --enablerepo=crb bzip2 gcc openssl-devel readline-devel zlib-devel libyaml-devel git

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

# rbenv PATH通し
if [ $(grep '^# rbenv$' ~/.bash_profile > /dev/null; echo ${?}) -ne 0 ] ; then
    echo '# rbenv' >> ~/.bash_profile
    echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
    echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
    source ~/.bash_profile
    cat <<'GEMRC' > ~/.gemrc
install: --no-document
update: --no-document
GEMRC
fi

rubyver=3.3.4
time CONFIGURE_OPTS="--disable-install-doc" MAKE_OPTS="-j 4" rbenv install ${rubyver}
rbenv global ${rubyver}
source ~/.bash_profile
ruby -v
gem update --system;gem update