# rename directories first
for dir in find -type d *;
do
if [[ "$dir" == *_0* ]]
then
a=${dir:0:3}
b=${dir:5:6}
c=${a}_${b}

#echo ${c}
if [[ ${#c} = 6 ]]
then
rm -rf ${c}
echo ${#c} ${c}
mv ${dir} ${c}
fi
fi
done