tl;dr: how to make a symbolic link in OS X. So, if you don't want to build Julia from source, you can download the .app on OS X. For me, this doesn't work well because it opens Terminal when I double click on the .app, and I like to use Iterm. Also, there's not an easy way to open or use Julia from the terminal.
The solution is a symbolic link, and running something like this in a terminal: sudo ln -s /Applications/Julia-0.4.1.app/Contents/Resources/julia/bin/julia /usr/bin/julia sudo ln -s /Applications/Julia-0.4.1.app/Contents/Resources/julia/bin/julia-debug /usr/bin/julia-debug which creates links in /usr/bin to julia and julia-debug.
