UNZIPDIR=~/unzip_tmp

for i in `find . -name "*.kwd" | sed -e 's/ /^/g' ` 
do
rm -fr $UNZIPDIR/*

# extract 
unzip -q -d $UNZIPDIR "`echo $i | sed -e 's/\^/ /g'`" 2>/dev/null

# look for search string
anz=`find $UNZIPDIR -name "*.xml" |xargs grep -i "$1" |wc -l` 

# return filename if string found
if [ $anz != 0 ] 
then
echo $i | sed -e 's/\^/ /g'
fi

done
rm -r $UNZIPDIR