I have a Windows machine with Cygwin on it.
It has a Windows install of Inkscape in (in Cygwin notation):
/cygdrive/c/Program Files/Inkscape/bin/inkscape.exe
So Cygwin gives me all the useful Linux/UNIX command line tools, and the one that we’re going to work with now is find.
I can see a list of all my SVG files, after I cd to the parent directory.
I can see what PNG files I already have:
$ find . -iname "*png" | more
I can see how to use Inkscape from the command line:
$ /cygdrive/c/Program\ Files/Inkscape/bin/inkscape.exe --help
And I see that I can ask it to export to a file type, and it will guess the output format based on the output file extension. Or I can specify a type and it will use the old file name with a new extension:
$ /cygdrive/c/Program\ Files/Inkscape/bin/inkscape.exe --export-dpi=72 --export-type=png filename.svg
So we can use find to walk the file hierarchy and inkscape to convert things when we find them.
$ find /path/to/parent/folder -name "*.svg" -exec /cygdrive/c/Program\ Files/Inkscape/bin/inkscape.exe --export-dpi=72 --export-type=png {} \;
Various command line switches can be used to tune the results.
Having said that, the non-native (Cairo) import into SVG seems to work better than the native one.
DSPACE 