#!/bin/bash
sum=0; 
for i in `find ./ -type f \( -iregex .*\.h -or -iregex .*\.cpp \) -exec du -b '{}' \; | cut -f 1`; do 
        sum=$(( $sum + $i )); 
done;
lines=`find ./ -type f \( -iregex .*\.h -or -iregex .*\.cpp \) -exec cat '{}' \; | wc -l`

echo $sum bytes
echo $(( $sum/1024 )) kbytes
echo $(( $sum/1024/1024 )) mbytes
echo $lines lines