Linux命令行下登录ssl加密的ftp

sslftp 192.168.0.84 -i -implicit_port 990
Connected to 192.168.0.84:1234
starting SSL/TLS
secure protocol TLSv1 used.
220 Serv-U FTP Server v7.2 ready...
(secure) User: yejr
331 User name okay, need password.
(secure) Password: ****************
230-User logged in, proceed.
230 Welcome！
Type in "save" to save login details to /root/.netrc
sslftp> bye
221 Goodbye, closing session.
Channel Closed.
Bye :-)

#!/bin/bash
##
FTP_SERV=192.168.0.84
FTP_PORT=1234
FTP_USER="yejr"
FTP_PASS="yejr"
sslftp -i -implicit_port :$FTP_PORT -script <