Question

当我运行此命令时：

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

我收到以下错误：

It appears Homebrew is already installed. If your intent is to reinstall you
should do the following before running this installer again:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
The current contents of /usr/local are bin CODEOFCONDUCT.md git include lib libexec Library LICENSE.txt n share var .git .github .gitignore

但是，当我运行brew doctor时，会抛出此错误：

bash: brew: command not found

当我尝试使用此脚本卸载Homebrew时：

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

我的命令提示符响应：

Failed to locate Homebrew!

请帮忙。

Answer 1

首先手动删除所有自制文件。然后从头开始重新安装Homebrew。前缀sudo由您自行决定：

# packages
rm -rf /usr/local/Cellar

# executable
rm /usr/local/bin/brew

# meta
rm -rf /usr/local/.git
rm /usr/local/.github
rm /usr/local/.gitignore
rm /usr/local/.travis.yml
rm /usr/local/.yardopts
rm /usr/local/CODEOFCONDUCT.md
rm /usr/local/LICENSE.txt
rm /usr/local/README.md

# home
rm ~/.rvm/bin/brew
rm ~/.homebrew
rm -rf ~/Library/Caches/Homebrew
rm -rf ~/Library/Logs/Homebrew

# other
rm -rf /Library/Caches/Homebrew

# find more files to delete; delete Homebrew files only!
find / -name "*brew*"

重要说明：由于重新安装时出现权限错误，您可能需要在重新安装之前执行以下步骤之一;见：https://github.com/Homebrew/legacy-homebrew/issues/15138

# via: https://github.com/Homebrew/legacy-homebrew/issues/15138#issuecomment-19258042
cd /usr/local
sudo mv -v Library Library.old

# --OR--

# via: https://github.com/Homebrew/legacy-homebrew/issues/15138#issuecomment-33338868
# see: http://linuxcommand.org/man_pages/chmod1.html
cd /usr/local
chmod -R 775 Library

重新安装Homebrew;见：http://brew.sh

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

Answer 2

最新版本的XCode和Homebrew存在问题。打开终端并运行：

rm -rf /usr/local/Cellar /usr/local/.git
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

如果您获得权限被拒，请使用sudo。卸载Homebrew时，目录/usr/local/Cellar/被完全删除，因此可以安全删除它。

在运行El Capitan的Macbook上安装Homebrew

2 个答案: