Search & delete non-open files

#!/bin/bash

for filename in `find /opt/ows/store/ -name "*.in.*"`
do
        if lsof -X $filename >/dev/null
        then
                sync
        else
                echo "Deleting $filename"
                rm -f $filename
        fi
done |mail -s "FTP orphea-web.rian.off broken files cleanup" flycat@xxxxxx.ru