HOWTO: Install and use GNU command line utilities on Mac OS X

Install the GNU Command Line Tools

sudo port install coreutils

Most essential UNIX commands:

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

Some command line tools already exist on OS X, but you may want a newer version:

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

As a complementary set of packages, the following ones are not from GNU, but you can install and use a newer version instead of the version shipped by OS X:

brew install file-formula
brew install git
brew install less
brew install openssh
brew install perl518  # must run "brew tap homebrew/versions" first!
brew install python
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

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