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Setup new Mac with OSX Mountain Lion from scratch

These commands are good as of 2013-1-8.

Install The latest XCode from the App Store

App store The download/install takes awhile so start it first. When it finishes downloading you will still need to run it to complete installation.

Install Command Line Tools

In XCode's Preferences > Downloads you can install command line tools.

Let Everyone Know Where XCode Is

sudo xcode-select -switch /Applications/


Really the nicest choice for a terminal on OSX right now, especially with Lion style full screen support.

Solarized color scheme

I feel there is an advantage in setting all your dev apps to use a consistent color scheme, especially your terminal and text editor/dev environment.


First, install X11

Visit and download and install the latest version.

You will need to fix the symlink it makes:

ln -s /opt/X11 /usr/X11

Log out, then log back in.

Now you can install Homebrew

ruby -e "$(curl -fsSkL"

(Note that Xcode is a pre-req for Homebrew)

Take Dr. Brew's advice, whatever it is:

brew doctor

Set shell to ZSH and install oh-my-zsh

brew install wget
wget --no-check-certificate -O - | sh

restart iTerm2



brew install git

Copy over your SSH Keys from your existing machine if you have them and want to carry over your existing SSH configs.


bash -s stable < <(curl -s
rvm get head


[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"  # This loads RVM into a shell session.

Start new shell session

Install ruby

rvm install 1.9.3 --with-gcc=clang
rvm install jruby-1.7.1

Regarding the --with-gcc=clang line, see:

See if there is anything in the rvm notes you need to take action on. As of this writing the compiler needs to be overridden.

rvm notes

Create a .gemrc file and add the line

gem: --no-ri --no-rdoc


brew install mysql
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