因为某种原因，使用了一个新的Mac OS系统，又出于某种原因需要安装Emacs 24，才发现原来自带的版本是23，于是下了一个安装之。原来Mac OS的很多常用软件并不是更新得频繁，对于一个有最新强迫症的人来说，这。。。

安装之前

原文:http://www.topbug.net/blog/2013/04/14/install-and-use-gnu-command-line-tools-in-mac-os-x/

需要有Hombrew，而且还要有Xcode

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

添加到.zshrc或者.bashrc，一直习惯用bash，用的是.bash_profile。

安装GNU命令行工具

1.安装coreutils

    brew install coreutils

2.添加brew的repo

    brew tap homebrew/dupes

3.安装下列的软件

brew install binutils
brew install diffutils
brew install ed --default-names
brew install findutils --default-names
brew install gawk
brew install gnu-indent --default-names
brew install gnu-sed --default-names
brew install gnu-tar --default-names
brew install gnu-which --default-names
brew install gnutls --default-names
brew install grep --default-names
brew install gzip
brew install screen
brew install watch
brew install wdiff --with-gettext
brew install wget

对于那些已经安装的想要最新版本的

brew install bash
brew install emacs
brew install gdb  # gdb requires further actions to make it work. See `brew info gdb`.
brew install gpatch
brew install m4
brew install make
brew install nano

不是GNU的

brew install file-formula
brew install git
brew install less
brew install openssh --with-brewed-openssl
brew install perl518   # must run "brew tap homebrew/versions" first!
brew install python --with-brewed-openssl
brew install rsync
brew install svn
brew install unzip
brew install vim --override-system-vi
brew install macvim --override-system-vim --custom-system-icons
brew install zsh

总结

虽然感觉起来没有什么大的变化，但是有种以后更新方便的感觉，只是没有GNU/Linux上来得爽，有提示可更新。