#!/bin/bash

EXTENSIONS=".tex .abc"
DIRECTORIES="design flash"

if [ -e /tmp/countertemp ]; then
echo "delete /tmp/countertemp to continue"
exit 1
fi

mkdir /tmp/countertemp

COUNTERALL="0"
COUNTER="1"

LINESALL="0"

for DIRECTORY in $DIRECTORIES
do
for EXTENSION in $EXTENSIONS
do
COUNTERALL=`expr $COUNTERALL + 1`
find $DIRECTORY -name *$EXTENSION -fprint /tmp/countertemp/_"$COUNTERALL"_.files
done
done

while [ $COUNTER -le $COUNTERALL ]
do
FILES="/tmp/countertemp/_"$COUNTER"_.files"
LINES=$(wc "$FILES"|awk '{print $1}')
LINE_NUMBER="1"
while [ $LINE_NUMBER -le $LINES ]
do
FILENOW=$(tail +$LINE_NUMBER "$FILES"|head -1)
LINENOW=$(wc "$FILENOW"|awk '{print $1}')
LINESALL=`expr $LINESALL + $LINENOW`
LINE_NUMBER=`expr $LINE_NUMBER + 1`
done
COUNTER=`expr $COUNTER + 1`
done
echo $LINESALL
rm -r /tmp/countertemp