brew是MacOS上的包管理工具，像RHEL/CentOS上的yum或者Ubuntu上的apt-get一样，MacOS上使用brew也可以非常容易进行包的管理。
| 项目 | 说明 |
|---|---|
| 官方网站 | https://brew.sh |
| 开源/闭源 | 开源 |
| License类别 | BSD 2-Clause “Simplified” License |
| 代码管理地址 | https://github.com/Homebrew/brew |
| 开发语言 | Ruby |
| 支持平台 | MacOS |
| 当前版本 | 1.6.9 （2018/06/18） |
因为brew是ruby开发的，需要使用确认ruby已经安装，缺省状况下是已经安装的。
liumiaocn:~ liumiao$ which ruby /usr/bin/ruby liumiaocn:~ liumiao$ ruby -v ruby 2.3.3p222 (2016-11-21 revision 56859) [universal.x86_64-darwin17] liumiaocn:~ liumiao$ 具体的安装脚本在raw.githubusercontent.com已有，使用如下命令即可安装
安装命令：ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”
liumiaocn:~ liumiao$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" ==> This script will install: /usr/local/bin/brew /usr/local/share/doc/homebrew /usr/local/share/man/man1/brew.1 /usr/local/share/zsh/site-functions/_brew /usr/local/etc/bash_completion.d/brew /usr/local/Homebrew ==> The following existing directories will be made group writable: /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 ==> The following existing directories will have their owner set to liumiao: /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 ==> The following existing directories will have their group set to admin: /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 Press RETURN to continue or any other key to abort ==> /usr/bin/sudo /bin/chmod u+rwx /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 Password: ==> /usr/bin/sudo /bin/chmod g+rwx /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 ==> /usr/bin/sudo /usr/sbin/chown liumiao /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 ==> /usr/bin/sudo /usr/bin/chgrp admin /usr/local/share/doc /usr/local/share/man /usr/local/share/man/man1 /usr/local/share/man/man3 /usr/local/share/man/man5 /usr/local/share/man/man7 ==> Downloading and installing Homebrew... remote: Counting objects: 103258, done. remote: Total 103258 (delta 0), reused 0 (delta 0), pack-reused 103257 Receiving objects: 100% (103258/103258), 23.47 MiB | 22.00 KiB/s, done. Resolving deltas: 100% (75270/75270), done. From https://github.com/Homebrew/brew * [new branch] master -> origin/master ...省略 * [new tag] 1.6.9 -> 1.6.9 HEAD is now at 25542d739 Merge pull request #4316 from reitermarkus/merge-search ==> Tapping homebrew/core Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core'... fatal: unable to access 'https://github.com/Homebrew/homebrew-core/': Could not resolve host: github.com Error: Failure while executing: git clone https://github.com/Homebrew/homebrew-core /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core --depth=1 Error: Failure while executing: /usr/local/bin/brew tap homebrew/core Failed during: /usr/local/bin/brew update --force liumiaocn:~ liumiao$由于网络等的问题，往往容易出错，再次执行：
liumiaocn:~ liumiao$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" ==> This script will install: /usr/local/bin/brew /usr/local/share/doc/homebrew /usr/local/share/man/man1/brew.1 /usr/local/share/zsh/site-functions/_brew /usr/local/etc/bash_completion.d/brew /usr/local/Homebrew Press RETURN to continue or any other key to abort ==> Downloading and installing Homebrew... HEAD is now at 25542d739 Merge pull request #4316 from reitermarkus/merge-search ==> Tapping homebrew/core Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core'... remote: Counting objects: 4788, done. remote: Compressing objects: 100% (4562/4562), done. remote: Total 4788 (delta 56), reused 1038 (delta 38), pack-reused 0 Receiving objects: 100% (4788/4788), 3.88 MiB | 45.00 KiB/s, done. Resolving deltas: 100% (56/56), done. Tapped 4576 formulae (4,829 files, 12.2MB) ==> Cleaning up /Library/Caches/Homebrew... ==> Migrating /Library/Caches/Homebrew to /Users/liumiao/Library/Caches/Homebrew... ==> Deleting /Library/Caches/Homebrew... Already up-to-date. ==> Installation successful! ==> Homebrew has enabled anonymous aggregate user behaviour analytics. Read the analytics documentation (and how to opt-out) here: https://docs.brew.sh/Analytics.html ==> Next steps: - Run `brew help` to get started - Further documentation: https://docs.brew.sh liumiaocn:~ liumiao$ liumiaocn:~ liumiao$ brew -v Homebrew 1.6.9 Homebrew/homebrew-core (git revision cf4d; last commit 2018-06-19) liumiaocn:~ liumiao$使用brew可以进行包的查询/安装/卸载等常见操作：
| 子命令 | 说明 |
|---|---|
| info | 确认包的安装状况 |
| install | 安装包 |
| uninstall | 卸载包 |
| update | 更新包 |
| list | 确认已经安装的包的状况 |
| doctor | 检测冲突 |
比如使用brew install wget进行wget的安装
liumiaocn:~ liumiao$ brew list gdbm jpeg libpng libunistring pkg-config readline wget wxpython gettext libidn2 libtiff openssl python@2 sqlite wxmac liumiaocn:~ liumiao$文章来源: brew: MacOS的包管理工具