upload.sh

#!/bin/bash
HOST='<IP ADDRESS>'
USER='<USER>'
PASS='<PASSWORD>'
TARGETFOLDER='/media/external/record'
SOURCEFOLDER='/tmp/sd/record'

lftp -f "
set ftp:passive-mode on
set ftp:ssl-allow yes
set ssl:verify-certificate no
open -u $USER,$PASS $HOST
cd $SOURCEFOLDER
mirror --continue --scan-all-first --use-cache --only-missing --verbose $SOURCEFOLDER $TARGETFOLDER
bye
"