shell脚本中写sftp

#!/bin/bash
v_date=$1
project_name=$2
v_file=serv_d.txt
HOST=10.0.0.0
USER=aaaa
PASSWORD=bbb
duiduan_path=/data/aa
local_path=/home/bbb
echo "starting to sftp..."
lftp -u ${USER},${PASSWORD} sftp://${HOST}<<EOF
cd ${duiduan_path}
lcd ${local_path}
put ${v_file}
echo
bye
EOF