/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
b. brew命令:
b-1. 搜索:git
brew search 軟件
b-2. 安裝:github
brew install 軟件
b-3. 卸載:ruby
brew uninstall 軟件
b-4. 升級:markdown
brew upgrade 軟件
defaults write com.apple.finder AppleShowAllFiles -bool true
b. 隱藏:app
defaults write com.apple.finder AppleShowAllFiles -bool false
Command+Option+C