Ruby on MacOS - 맥 루비 설치(rbenv)

Ruby is a programming language , used generally for web development , through a ruby library called rails .

Under macOS , ruby comes pre-installed , and it can be found under : /System/Library/Frameworks/Ruby.framework/Versions/ . Starting macOS Catalina version 10.15 , this is deprecated , and future versions of macOS might not contain ruby by default .

Rbenv is a ruby version manager , which allows to select the ruby version to be active . It also allows to install multiple versions of ruby .

Rbenv installs under the current user directory : ~/.rbenv , and the installed ruby versions , are installed , under : ~/.rbenv/versions

Mac 은 기본적으로 Ruby 를 가지고 있습니다. 하지만 오래된 버전이기 때문에 지금과 맞지 않는 부분이 많습니다. 일반적으로 Homebrew 를 사용해 Ruby 를 설치할 수 있지만, 설치한 Ruby 가 실행 되진 않습니다. 때문에 Rbenv 를 사용해 실제로 사용할 Ruby 버전을 지정해야 합니다.

• 본 글은 영어로 작성되어 있지만 순서대로 따라하면 문제 없습니다. 다만, Zsh, bash 확인이 필요합니다.

---

환경

• MacBook Pro(Intel Core)
• Monterey OS(Version 12.2.1)
• git version 2.32.0 (Apple Git-132)

---

First clone rbenv

using the following command :

git clone https://github.com/rbenv/rbenv.git ~/.rbenv

Then execute

cd ~/.rbenv && src/configure && make -C src

• If macOS before catalina , and using bash , execute :

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile

• If macOS catalina and after , and using zsh , execute :

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.zshrc

Execute

~/.rbenv/bin/rbenv init

Open Nano editor

• If bash execute

nano ~/.bash_profile

and to autoload rbenv , add :

eval "$(rbenv init -)"

ctrl-x , to save and exit.

• If zsh execute

nano ~/.zshrc

and to autoload rbenv , add :

eval "$(rbenv init - zsh)"

Ctrl-x , to save and exit.

Execute

• If the default shell is bash . Usually , this is true for MacOS versions , prior to Catalina .

source ~/.bash_profile

• If the default shell is zsh . Usually this is true , for MacOS Catalina , and after .

source ~/.zshrc

Install ruby build , to install ,versions of ruby

mkdir -p "$(rbenv root)"/plugins

git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build

Verify rbenv has been installed correctly

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash

Show the lastest stable releases

rbenv install --list

Install Ruby

rbenv install <Version>

rbenv rehash

rbenv rehash

Version Check(rbenv)

rbenv versions

Set global

rbenv global <Version>

Version check(Ruby)

ruby -v