sugar equivalent of uname?

[Mikus Grinbergs]

> the portable way is to use jarabe.config.version for >=0.84
> and assume 0.82 if that's not present.

When running on an XO, how does one access 'jarabe.config.version' ?

It would be nice if the sugar version could be determined from within a
batch script.  But I looked (in >=0.84 builds) for a file by that name,
or for a file with that content, and came up empty.

Thanks for your attention,  mikus