[evh]

Lots (just some? most? I haven't really used it much) of FreeBSD system utilities are using libxo for output, so you can use e.g.

    ps --libxo json

and get json output, or xml/html

[agumonkey]

I didn't know bsd already adopted it, only heard a few passing mentions. That's great, though, and note that I mostly meant that about linux.