切勿将sudo与命令brew 一起使用.它将破坏相关文件的所有权.不支持以root用户身份运行brew.

来自Homebrew文档的报价

tl; dr Sudo很危险，您始终没有安装sudo就安装了TextMate.app.

tl;dr Sudo is dangerous, and you installed TextMate.app without sudo anyway.

自制软件拒绝使用sudo工作.

Homebrew refuses to work using sudo.

源代码brew

check-run-command-as-root() {
  ...
  odie <<EOS
Running Homebrew as root is extremely dangerous and no longer supported.
As Homebrew does not drop privileges on installation you would be giving all
build scripts full access to your system.
EOS
}

解决方案

1. 禁用该服务并删除启动守护程序.

1. Disable the service and remove the launchdaemon.

# stop and unload the launchdaemon
sudo launchctl unload -w /Library/LaunchDaemons/homebrew.mxcl.mysql.plist
# remove the lauchdaemon file
sudo rm -f /Library/LaunchDaemons/homebrew.mxcl.mysql.plist
sudo rm -f /tmp/mysql.sock /tmp/mysqlx.sock

sudo chown -R "$(whoami):admin" /usr/local/*
# it will take some time

# DO NOT USE "sudo brew"
brew services start mysql