命令行：
- find . -name *.module |xargs wc -l
- find . -name *.inc | xargs wc -l
- find . -name *.php |xargs wc -l
- find . -name *.install |xargs wc -l
PHP版本：
- exec("find /mnt/site -name *.module |xargs wc -l ", $res, $rc);
- $res = array_reverse($res);
- $t1 = explode(' ', $res[0]);
- exec("find /mnt/site -name *.inc |xargs wc -l ", $res, $rc);
- $res = array_reverse($res);
- $t2 = explode(' ', $res[0]);
- exec("find /mnt/site -name *.install |xargs wc -l ", $res, $rc);
- $res = array_reverse($res);
- $t3 = explode(' ', $res[0]);
- echo "Total " . $t1[1] + $t2[1] + $t3[1];
