不知道为什么没有人提到这一点:当你从官方网站运行安装命令时，在最后几行你会看到如下内容，你需要遵循==>下一步:

==> Installation successful!

==> Homebrew has enabled anonymous aggregate formulae and cask analytics.
Read the analytics documentation (and how to opt-out) here:
  https://docs.brew.sh/Analytics
No analytics data has been sent yet (or will be during this `install` run).

==> Homebrew is run entirely by unpaid volunteers. Please consider donating:
  https://github.com/Homebrew/brew#donations

==> Next steps:
- Add Homebrew to your PATH in /Users/{YOUR USER NAME}/.bash_profile:
    echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/{YOUR USER NAME}/.bash_profile
    eval $(/opt/homebrew/bin/brew shellenv)

这是bash shell的。对于每个不同的shell，您将看到不同的步骤，但是这些步骤的源是相同的。

如何设置你的Mac为家酿

步骤1

检查你已经安装了Xcode。在终端上运行下面的命令

/usr/bin/xcodebuild -version

它将打印以下示例输出:

Xcode 12.3 Build version 12C33

步骤2

现在打开Xcode:

选择偏好 选择位置选项卡 现在在命令行工具中从下拉菜单中选择你的Xcode版本

步骤3

在终端运行以下命令:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

注意:如果你有M1芯片Mac运行下面的命令，关闭终端，再打开终端

echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

解决“-bash: brew:命令未找到”问题

将Homebrew添加到/Users//.bash_profile中的PATH:

echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users//.bash_profile . sh

eval $(/opt/homebrew/bin/brew shellenv)

在macOS上安装自制程序

要安装自制程序，你可以简单地在终端上运行这个命令…

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

如果你需要帮助安装任何包从自制这个页面应该有帮助

如果你使用的是m1芯片mac，那么在安装homebrew后运行以下命令并再次打开终端:

echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

如果运行后仍然报错，

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

然后尝试从https://developer.apple.com/download/more/下载并安装命令行工具，适用于特定的Mac os和Xcode版本。

然后试着跑，

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

然后

brew install node