Operating system OS X中的brew更新

我正在尝试在OS X El Capitan 10.11.3中安装brew 但我有一个错误：

MacBook-Pro-de-paquirrin:~ paquirrin$ sudo brew update
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- mach (LoadError)
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Library/Homebrew/extend/pathname.rb:2:in `<top (required)>'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Library/Homebrew/global.rb:3:in `<top (required)>'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /usr/local/Library/brew.rb:15:in `<main>'

MacBook Pro de paquirrin:~paquirrin$sudo brew更新
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:“require”中：无法加载这样的文件--mach（LoadError）
from/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:in'require'
from/usr/local/Library/Homebrew/extend/pathname.rb:2:in`'
from/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:in'require'
from/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:in'require'
from/usr/local/Library/Homebrew/global.rb:3:in`'
from/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:in'require'
from/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core\u ext/kernel\u require.rb:55:in'require'
from/usr/local/Library/brew.rb:15:in`'

问题来自/usr/local目录的所有者。没什么了，sudochown$（whoami）：admin/usr/local命令就足够了（没有-R）

我成功地遵循了这些指示：

总之，这两个命令：

sudo chown -R $(whoami):admin /usr/local
cd $(brew --prefix) && git fetch origin && git reset --hard origin/master

你应该把它修好