To convert back from 7 to 6 vector format, use v.build in GRASS 6.
To convert back from 6.0 into the 5.0/5.3/5.4 vector format, use v.out.ogr (to SHAPE format) and then v.in.shape in the old GRASS program.
As this GRASS version uses SQL for attribute management, there are some SQL restrictings concerning the file names. This script changes dots (e.g. "foo.bar") in old vector map names into underline(s) (e.g. "foo_bar").
v.convert.all
Last changed: $Date: 2011-11-08 13:24:20 -0800 (Tue, 08 Nov 2011) $