2015-02-19 OS X
If you miss a typical package manager like Apt-Get from Ubuntu then Homebrew in OS X is for you.
When your Mac has Homebrew, you can easily install packages with command line. To install it, open Terminal and paste
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
You will get the following prompt. Hit Enter and follow instructions shown on the screen.
==> This script will install: /usr/local/bin/brew /usr/local/Library/... /usr/local/share/man/man1/brew.1 ==> The following directories will be made group writable: /usr/local/. /usr/local/bin /usr/local/include /usr/local/lib /usr/local/share /usr/local/share/man /usr/local/share/man/man1 ==> The following directories will have their group set to admin: /usr/local/bin /usr/local/include /usr/local/share/man /usr/local/share/man/man1 Press RETURN to continue or any other key to abort