[GRASSLIST:3125] displaying vectors by labels

[Ian Macmillan]

Hi all, I have a vector map that I imported using m.in.e00.  I have a dig_cat
file that contains category numbers and their associated labels.  I would like
to make a new vector file based upon the category labels, not the numbers.  Can
I do this, if so, how?

an example of my file is 

1:2
2:2
3:2
4:1
5:1
6:2
7:3
etc. etc.

I would like to make a map of all vectors labelled 2, however there are hundreds
of different category labels.  This seems like it should be very easy, and I am
just missing something simple.

Thanks,
Ian

PS I am using GRASS 5.0.0 on osx 10.2.8