split monthly logfiles into daily logfiles

Hi,

I have a lot of logfiles like fooYYYYMM.log (foo200301.log, foo200810.log) with lines like
YYYY-MM-DD TIMESTAMP,text1,text2,text3...
but I need (for postprocessing) the form fooYYYYMMDD.log (so foo200402.log becomes foo20040201.log, foo20040202.log...)
with unmodified content of lines.

Thanks for any help!
Uwe

for i in `ls foo*.log`
do
awk ' {f="foo"$1".log"; print > f}' $i
done