ftp bigger files than 4GB

#!/bin/bash

for file in $(stat --format=%n:%s */*pkg)
do
SIZE=$(echo "$file" | sed "s|^.*:||")
FILE=$(echo "$file" | sed "s|:.*$||")

# 4294901760
if [ "$SIZE" -gt "4294901760" ]; then
echo -e "$SIZE\n$FILE\n"
/usr/bin/lftp -f "
open 192.168.88.19
put -c -O dev_hdd0/packages/ ${PWD}/$FILE
bye
"
fi

done