I have been trying to figure this out for a long time. I have a pretty typical Mac OS provisioning script:

https://gist.github.com/ryanpcmcquen/b2e608311f286a4ab3e1

I would like to change the Mission control shortcuts to all be Ctrl+Alt+... instead of Ctrl+.... For example, the default is: Ctrl+Up to activate Mission Control. I would like to change this to Ctrl+Alt+Up, because the current shortcut conflicts with other programs I use.

Note that I am already aware of how to do this through System Preferences > Keyboard > Shortcuts, I am looking for a scriptable, command line solution.