Russel, I have Minim. I don't use it because of a fundamental confusion:
Are "exception" domains excepted FROM blocking of content types? Or are "exception" domains blocked (blocked because they are, in a sense, excepted, from the inclusion of content of types I've designated to be blocked)?
I want to use Kanopy.com to stream movies (my public library pays Kanopy to run that for us borrowers). I want some content types blocked when I load/use/visit their domain. But I'm not sure if my settings for Kanopy.com will prevent loading or prevent prevention of loading!
The clearSafariCache.sh script takes a very long time (almost three minutes) on my machines, too, so I went ahead and optimized the find expression a bit so it won't unnecessarily descend into huge directories like com.apple.metadata.mdworker.