Install Software

Chrome Extensions

Create a ~/.rcrc file. Then in your ~/.bashrc, ~/.zshrc, etc. put source ~/.rcrc. You should set any environment variables or related items in this ~/.rcrc file.
Run git from command line. This should prompt the installation of XCode, which includes git, C++, and other useful stuff.
Install brew, following instructions here: http://brew.sh/
Install python with brew. Python is already included, but for a handful of reasons you should install the latest directly from python. You can read more here, otherwise just: brew install python
Now that you've installed Python, you should have access to Pip (the Python package manager). Installing things with Pip is more elegant when using virtual environments. A straightforward virtual environment manager is "Virtualenv Wrapper". Install it now: pip install virtualenvwrapper
Let's make our first virtual environment and install iPython:

mkvirtualenv datascience -p python2.7
workon datascience # this activates the virtual environment
pip install ipython

Setup you ssh key using instructions from github: https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/
Add your ssh key to any remote accounts (notably the CIMS machines if you attend NYU).

oh-my-zsh - https://github.com/robbyrussell/oh-my-zsh
subl from command line - https://www.sublimetext.com/docs/3/osx_command_line.html
hub (github utility): brew install hub
extra git commands (like git ls-files): brew install git-extras
KeepingYouAwake. Quick utility that keeps your screen from going to sleep: brew cask install keepingyouawake
assortment of other utilities installed with brew:

brew install tree
brew install wget
brew install tmux

assortment of python utilities. I recommend installing these into the virtual environment of your choosing.

workon datascience
pip install bitbucket-cli
pip install awscli
pip install jupyter