Since we're going to be spending a lot of time in the command-line, let's install a better terminal than the default one. Download and install iTerm2.
In Finder, drag and drop the iTerm Application file into the Applications folder.
You can now launch iTerm, through the Launchpad for instance.
Let's just quickly change some preferences.
command + option + i
export CLICOLOR=1line to your
~/.bash_profilefile for nice coloring of listings.