一、Homebrew介绍

  Homebrew是一款Mac OS平台下的软件包管理工具，拥有安装、卸载、更新、查看、搜索等很多实用的功能。简单的一条指令，就可以实现包管理，而不用你关心各种依赖和文件路径的情况，十分方便快捷。

  正如官方宣传时所说：又提示缺少套件啦？别担心，Homebrew 随时守候。Homebrew —— OS X 不可或缺的套件管理器。

二、安装Homebrew

检查电脑是否有安装Homebrew，打开终端输入：

brew -v

如果出现版本号，则表示已安装Homebrew，如果提示：

-bash: brew: command not found

则表示未安装Homebrew，需要先安装Homebrew。将以下命令复制到终端执行：

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

等待完成之后（可能会报443，可以换手机热点多试几次），可能会提示：

Warning: /opt/homebrew/bin is not in your PATH.
==> 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/自己的用户名/.zprofile:
    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/换成自己的用户名/.zprofile
    eval "$(/opt/homebrew/bin/brew shellenv)"
- Run `brew help` to get started
- Further documentation: 
    https://docs.brew.sh

表示Homebrew的路径没有添加到全局环境变量中，按照提示执行：

echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/换成自己的用户名/.zprofile
// 然后
eval "$(/opt/homebrew/bin/brew shellenv)"

再次输入：

brew -v

得到版本号，表示Homebrew安装完成：

Homebrew 3.1.8

三、Homebrew常用命令

1.安装任意包

brew install <packageName>
//示例：安装node
brew install node

2.卸载任意包

brew uninstall <packageName>
//示例：卸载git
brew uninstall git

3.查询可用包

brew search <packageName>

4.查看已安装包列表

brew list

5.查看任意包信息

brew info <packageName>

6.更新Homebrew

brew update

7.删除Homebrew

//官方版本的卸载：
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"  

//非官方版本
cd `brew –prefix`
brew prune
rm `git ls-files`
rm -r /usr/local/Homebrew
rm -rf .git
rm -rf ~/Library/Caches/Homebrew
rm -rf /usr/local/opt
rm -rf /usr/local/Caskroom
rm -rf /usr/local/var/homebrew

如果提示没有权限，需要在rm命令前加上sudo

8.查看Homebrew版本

brew -v

9.Homebrew帮助信息

brew -h

文中如有不全或错误，欢迎留言指出，谢谢支持……^ _ ^