터미널 열고

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ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
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gimjonghuiui-MacBook-Pro:bin paper$ brew -v
Homebrew 0.9.5

출처: http://coolestguidesontheplanet.com/installing-homebrew-os-x-yosemite-10-10-package-manager-unix-apps/