Answer by Lri for How to replace Mac OS X utilities with GNU core utilities?

This adds symlinks for GNU utilities with g prefix to /usr/local/bin/:

brew install coreutils findutils gnu-tar gnu-sed gawk gnutls gnu-indent gnu-getopt grep

See brew search gnu for other packages. If you want to use the commands without a g prefix add for example /usr/local/opt/coreutils/libexec/gnubin before other directories on your PATH.

$ brew info coreutilscoreutils: stable 8.21http://www.gnu.org/software/coreutilsDepends on: xz/usr/local/Cellar/coreutils/8.20 (208 files, 9.4M)/usr/local/Cellar/coreutils/8.21 (210 files, 9.6M) *https://github.com/mxcl/homebrew/commits/master/Library/Formula/coreutils.rb==> CaveatsAll commands have been installed with the prefix 'g'.If you really need to use these commands with their normal names, youcan add a "gnubin" directory to your PATH from your bashrc like:    PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"Additionally, you can access their man pages with normal names if you addthe "gnuman" directory to your MANPATH from your bashrc as well:    MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH"