什么是homebrew？

引用官网的介绍，homebrew是：
The Missing Package Manager for macOS (or Linux)

翻译过来就是：
macOS（或 Linux）缺失的软件包的管理器
macOS本身不包含包管理器（当然你要是非说xcode-select –install也是的话那当我没说）

安装homebrew

自动安装

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/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

这条命令将自动安装，使用国内源

手动安装（可选）

首先

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xcode-select --install

安装Command Line Tools
再

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export HOMEBREW_INSTALL_FROM_API=1
export HOMEBREW_API_DOMAIN="https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles/api"
export HOMEBREW_BOTTLE_DOMAIN="https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles"
export HOMEBREW_BREW_GIT_REMOTE="https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git"
export HOMEBREW_CORE_GIT_REMOTE="https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git"
git clone --depth=1 https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/install.git brew-install

/bin/bash brew-install/install.sh

rm -rf brew-install

针对Apple silicon的用户：

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if test -r ~/.bash_profile;then echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.bash_profile;else touch ~/.bash_profile && echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.bash_profile;fi

if test -r ~/.zprofile;then echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile;else touch ~/.zprofile && echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile;fi

这个时候执行：

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brew -v

查看是否安装完成