$ brew update
Error: Permission denied - /usr/local/Library/Formula/abyss-explorer.rb
$ brew upgrade
==> Upgrading 20 outdated packages, with result:
ant 1.9.4, automake 1.14.1, elasticsearch 1.2.0, erlang R16B03-1, gd 2.1.0_2, git 1.9.3, gnu...
hecha
24.08.2014 - 08:19