I'm not sure there's much of a correlation there. Most engineers using OS X (a group that's at least as large as Linux-using engineers) use the command line on

I'm not sure there's much of a correlation there. Most engineers using OS X (a group that's at least as large as Linux-using engineers) use the command line on a regular basis; I think it has more to do with the fact that even a dated *nix userland has 90%+ of what the majority of engineers need.