qli@qli-desktop:~/backup/backup$ cat calcCodelines.sh
#!/usr/bin/env bash
#Simple collect the Fujitsu CE project different source code line number
#Author: liqi1031@gmail.com
#Date: Dec 17, 2011

usage()
{
        cat <<EOF
Please enter the directory you want to search and then run it!

Usage: calcCodelines.sh [-h|-v]
                        [args1] [args2] [args3]

Options:
           -h           print usage info.
           -v           print version info.
        args1           first match program language e.g *.c
        args2           second match program language e.g *.py
        args3           third match program language e.g *.sh or *.s

EOF
}

version()
{
        VERSION="1.0"
        echo "calcCodelines.sh version $VERSION."
        exit 0
}

calcCodeLine()
{
        destdir=`pwd`
        extname1=$1
        extname2=$2
        extname3=$3
        result=0
        for ext in $extname1 $extname2 $extname3
        do
                linelist=`find $destdir -type f -name "$ext" -exec wc -l {} \; |awk '{print $1}' |xargs echo`
                for num in $linelist
                do
                        result=`expr $result + $num`
                done
        done

        return $result
}

#main logic
main()
{
        if [ "x$1" == "x" ] || [ "x$1" == "x-h" ]; then
                usage
                exit 0
        elif [ "x$1" == "x-v" ]; then
                version
                exit 0
        elif [ "x$3" == "x" ] && [ "x$2" == "x" ]; then
                calcCodeLine $1
                echo "Code line number for $1 is $result"
        elif [ "x$3" == "x" ] && [ ! "x$2" == "x" ]; then
                calcCodeLine $1
                echo "Code line number for $1 is $result"
                calcCodeLine $2
                echo "Code line number for $2 is $result"
                calcCodeLine $1 $2
                echo "Total code line number is $result"
        else
                calcCodeLine $1
                echo "Code line number for $1 is $result"
                calcCodeLine $2
                echo "Code line number for $2 is $result"
                calcCodeLine $3
                echo "Code line number for $3 is $result"
                calcCodeLine $1 $2 $3
                echo "Total code line number is $result"
        fi
}

#run main
main $@
qli@qli-desktop:~/backup/backup$

Execution result from our project:

qli@qli-desktop:~/kususrc/kusu_2_1__1_fujitsu_ce$ ../../backup/backup/calcCodelines.sh *.py *.c *.sh
Code line number for *.py is 150866
Code line number for *.c is 3738
Code line number for *.sh is 1681
Total code line number is 156285
qli@qli-desktop:~/kususrc/kusu_2_1__1_fujitsu_ce$