OSX brew install GNU coreutils, bin utils etc...

brew_install_coreutils.sh

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

export PATH="$(brew --prefix coreutils)/libexec/gnubin:/usr/local/bin:$PATH"
brew install coreutils
brew install gnu-tar --with-default-names

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