Mac下Homebrew简介，安装与使用

简介

Homebrew是一个包管理器，用于安装Apple没有预装但你需要的UNIX工具。（比如著名的wget）。

Homebrew会将软件包安装到独立目录(/usr/local/Cellar)，并将其文件软链接至/usr/local。

Homebrew不会将文件安装到它本身目录之外，所以您可将Homebrew安装到任意位置。

Homebrew使macOS更完整。使用gem来安装gems、用brew来安装那些依赖包。

wget是一个从网络上自动下载文件的自由工具，支持通过 HTTP、HTTPS、FTP 三个最常见的 TCP/IP协议下载，并可以使用HTTP代理。"wget" 这个名称来源于 “World Wide Web” 与 “get” 的结合。

安装

安装XCode或者Command Line Tools for Xcode。Xcode可以从AppStore里下载安装，Command Line Tools for Xcode需要在终端中输入以下代码运行安装：
1
xcode-select --install
安装Homebrew。将以下命令粘贴至终端
1
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
脚本会在执行前暂停，并说明将它将做什么。

安装完成以后，需要运行brew doctor命令检测下是否有什么冲突的地方（如没有卸载MacPorts等等）

Homebrew安装成功后，会自动创建目录/usr/local/Cellar来存放Homebrew安装的程序。

基本使用

// 搜索包
brew search mysql

// 安装包
brew install mysql

// 查看包信息，比如目前的版本，依赖，安装后注意事项等
brew info mysql

// 卸载包
brew uninstall wget

// 显示已安装的包
brew list

// 查看brew的帮助
brew –help

// 更新， 这会更新 Homebrew 自己
brew update

// 检查过时（是否有新版本），这会列出所有安装的包里，哪些可以升级
brew outdated
brew outdated mysql

// 升级所有可以升级的软件们
brew upgrade
brew upgrade mysql

// 清理不需要的版本极其安装包缓存
brew cleanup
brew cleanup mysql

卸载

卸载代码：

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

终端输出：

➜  ~ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Warning: This script will remove:
/Users/joy/Library/Caches/Homebrew/ # HomeBrew下载缓存地址
/Users/joy/Library/Logs/Homebrew/   # HomeBrew Log 地址
/usr/local/Cellar/                  # HomeBrew包安装地址
/usr/local/Homebrew/
/usr/local/Homebrew/.github/
/usr/local/Homebrew/.gitignore
/usr/local/Homebrew/.travis.yml
/usr/local/Homebrew/.yardopts
/usr/local/Homebrew/CHANGELOG.md
/usr/local/Homebrew/CODE_OF_CONDUCT.md
/usr/local/Homebrew/CONTRIBUTING.md
/usr/local/Homebrew/LICENSE.txt
/usr/local/Homebrew/Library/
/usr/local/Homebrew/Library/Homebrew/test/.bundle/config
/usr/local/Homebrew/README.md
/usr/local/Homebrew/bin/brew
/usr/local/Homebrew/completions/
/usr/local/Homebrew/docs/
/usr/local/Homebrew/manpages/
/usr/local/bin/brew -> /usr/local/Homebrew/bin/brew
/usr/local/etc/bash_completion.d/brew -> /usr/local/Homebrew/completions/bash/brew
/usr/local/share/doc/homebrew -> /usr/local/Homebrew/docs
/usr/local/share/man/man1/brew-cask.1 -> /usr/local/Homebrew/manpages/brew-cask.1
/usr/local/share/man/man1/brew.1 -> /usr/local/Homebrew/manpages/brew.1
/usr/local/share/zsh/site-functions/_brew -> /usr/local/Homebrew/completions/zsh/_brew
/usr/local/share/zsh/site-functions/_brew_cask -> /usr/local/Homebrew/completions/zsh/_brew_cask
/usr/local/var/homebrew/
Are you sure you want to uninstall Homebrew? This will remove your installed packages! [y/N] y
==> Removing Homebrew installation...
==> Removing empty directories...
==> /usr/bin/sudo /usr/bin/find /usr/local/bin /usr/local/etc /usr/local/include /usr/local/lib /usr/local/opt /usr/local/sbin /usr/local/share /usr/local/var /usr/local/Cellar /usr/local/Homebrew /usr/local/Frameworks -name .DS_Store -delete
Password:
==> /usr/bin/sudo /usr/bin/find /usr/local/bin /usr/local/etc /usr/local/include /usr/local/lib /usr/local/opt /usr/local/sbin /usr/local/share /usr/local/var /usr/local/Cellar /usr/local/Homebrew /usr/local/Frameworks -depth -type d -empty -exec rmdir {} ;
==> Homebrew uninstalled!
The following possible Homebrew files were not deleted:
/usr/local/bin/
/usr/local/.com.apple.installer.keep
/usr/local/include/
/usr/local/sbin/
/usr/local/remotedesktop/
/usr/local/etc/
/usr/local/var/
/usr/local/lib/
/usr/local/share/
You may wish to remove them yourself.

扩展：Homebrew Cask

你已经感受到了使用Homebrew安装命令行程序的便利。那么接下来，我们将通过Homebrew Cask优雅、简单、快速的安装和管理OS X图形界面程序，比如Google Chrome和Dropbox。

安装

1	brew install caskroom/cask/brew-cask

使用

基本用法与brew相同，只不过在brew后面加了一个cask单词。

// 安装软件
brew cask install google-chrome

// 卸载软件
brew cask uninstall google-chrome

其他

JDK 8 can be downloaded from Oracle’s JDK Page.

// 安装Bazel
brew install bazel

// 查看Bazel版本
bazel version

// 提示需要安装java JDK

移除JAVA JDK

sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -fr /Library/PreferencesPanes/JavaControlPanel.prefPane
sudo rm -fr ~/Library/Application\ Support/Java
sudo rm -rf /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk