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How to install Jekyll using Homebrew and rbenv
# install Homebrew: https://wheat.at/mac/2017/12/09/homebrew.html
$ su ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
# show brew commands
$ brew help
# check current user
$ echo $(whoami)
# grant access to the folders
$ sudo chown -R $(whoami) /usr/local
$ sudo chown -R $(whoami) /Library/Caches/Homebrew/
# uninstall brew ruby
$ brew uninstall ruby
# install rbenv
$ brew update
$ brew install rbenv ruby-build
# add ~/.rbenv/bin to your $PATH for access to the rbenv command-line utility
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
# add rbenv init to your shell to enable shims and autocompletion
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
# install ruby via rbenv
$ rbenv install 2.4.2
$ rbenv global 2.4.2
$ rbenv versions
# check install path
$ which ruby
$ which gem
$ which jekyll
# rehash
$ rbenv rehash
# check ruby version and environment
$ ruby --version
$ gem env
# install jekyll bundler
$ gem install jekyll bundler
# initialize project
$ jekyll new <my-project-name>
# go to the project folder
$ cd <project folder>
# install / update gems
$ bundle install
or
$ bundle update
# show installed jekyll
$ bundle show jekyll
# serve jekyll pages
$ bundle exec jekyll serve --drafts --config _config.yml,_config_dev.yml
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