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brew --prefix返回：

/usr/本地

语境

MacOs Mojave 桌面是：

  1. 最初配置为brew
  2. 添加了一个新用户

brew每添加一个新组 ,指示用户 2 已添加到brew组中：

将安装目录组更改为“brew”：

sudo chgrp -R brew $(brew --prefix)/*

“brew”组被授予写入权限：

sudo chmod -R g+w $(brew --prefix)/*

目标是brew为任何用户启用该命令。

错误

brew update回报

warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/error.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/explicit_namespace.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/gem_inflector.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/inflector.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/kernel.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/loader.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/loader/callbacks.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/real_mod_name.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/registry.rb': Permission denied
warning: unable to unlink 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/version.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/error.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/explicit_namespace.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/gem_inflector.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/inflector.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/kernel.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/loader.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/loader/callbacks.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/real_mod_name.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/registry.rb': Permission denied
error: unable to unlink old 'Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/zeitwerk-2.3.1/lib/zeitwerk/version.rb': Permission denied
Already up-to-date.

问题

目标是brew为用户 2 启用该命令。目录 /Library/Homebrew 不存在。

  1. 是什么导致brew update警告和错误消息？
  2. 有哪些补救措施？

答案1

关于这条评论

在您的计算机上，由于某种原因它尝试触摸 /Library/Homebrew/

不，位置实际上是

/usr/local/Homebrew/Library/Homebrew/
  1. 是什么导致了 brew update 警告和错误消息？
  2. 有哪些补救措施？

为多用户配置添加组写入权限可以修复此问题：-

sudo chmod -R g+rwX /usr/local/Homebrew/Library/Homebrew/

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