brew 给 MAC 插上 yum 的翅膀
## 什么是 brew？
如果你在羡慕 yum、apt-get 给 Linux 系统带来的便捷，不妨装上 brew 。还不明白它是做什么的？brew 全称为 Homebrew，官网（ <http://brew.sh/> ）给它的定位是这样的：
>The missing package manager for OS X.
>Homebrew installs the stuff you need that Apple didn’t.
brew 可以自动解决软件包的依赖关系，方便软件包的安装、更新和卸载。可以称得上是 MAC 系统中的一大神器！
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## 安装
brew 的安装需要用到 ruby，MAC 中已经集成进去了。打开终端，执行命令：
```
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
```
!(https://file.mculoop.com/images/2022/11/image-20221111092618516_1668129978.png)
## 用法
帮助中说的已经比较清楚了：
```
➜~ brew -h
Example usage:
brew (info|home|options)
brew install FORMULA...
brew uninstall FORMULA...
brew search
brew list
brew update
brew upgrade
brew (pin|unpin)
Troubleshooting:
brew doctor
brew install -vd FORMULA
brew (--env|config)
Brewing:
brew create ]
brew edit
https://github.com/Homebrew/brew/blob/master/share/doc/homebrew/Formula-Cookbook.md
Further help:
man brew
brew help
brew home
```
以 p7zip 的安装为例：
```
➜~ brew search 7z
p7zip
➜~ brew info p7zip
p7zip: stable 15.09 (bottled)
7-Zip (high compression file archiver) implementation
http://p7zip.sourceforge.net/
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/p7zip.rb
➜~ brew install p7zip
==> Downloading https://homebrew.bintray.com/bottles/p7zip-15.09.el_capitan.bottle.tar.gz
######################################################################## 100.0%
==> Pouring p7zip-15.09.el_capitan.bottle.tar.gz
/usr/local/Cellar/p7zip/15.09: 100 files, 4.9M
➜~ 7z
7-Zip 15.09 beta : Copyright (c) 1999-2015 Igor Pavlov : 2015-10-16
p7zip Version 15.09 beta (locale=utf8,Utf16=on,HugeFiles=on,64 bits,8 CPUs x64)
Usage: 7z <command> [<switches>...] <archive_name> [<file_names>...]
[<@listfiles...>]
```
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