Question

Anyone has an idea what will be the problem?

#!/bin/bash -x

HOST='192.163.3.3'
USER='ftpuser'
PASSWD='apple'
Logfile=a.log

while :; do
ftp -n -p -v $HOST < example.script >> a.log
grep -qF "Connected" a.log &&
grep -qF "File successfully transferred" a.log && break
done

quote USER $USER
quote PASS $PASSWD

example.script contains

 put example.txt

after running it gives

 grep: a.log: No such file or directory
 grep: a.log: No such file or directory
                .
                .

example.script and the created a.log is on /home directory

the a.log contains

 Connected to 192.163.3.3.
 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
 220-You are user number 9 of 50 allowed.
 220-Local time is now 14:38. Server port: 21.
 220-This is a private system - No anonymous login
 220-IPv6 connections are also welcome on this server.
 220 You will be disconnected after 15 minutes of inactivity.
 Remote system type is UNIX.
 Using binary mode to transfer files.
 local: example.txt remote: example.txt
 530 You aren't logged in
 Passive mode refused.
 221-Goodbye. You uploaded 0 and downloaded 0 kbytes.
 221 Logout.

why cant i logged in?

  HOST='192.163.3.3'
  USER='ftpuser'
  PASSWD='apple'
  FILE='example.txt'
  Logfile=a.log

  ftp -n -p -v $HOST << SCRIPT_END >> a.log
  quote USER $USER
  quote PASS $PASSWD

  put $FILE
  SCRIPT_END

with this it works but why? what will be the difference?

Answer 1

I usually find creating a netrc file and using that to at least start my FTP session gets me around a lot of issues with scripting an ftp session. Most ftp programs give you the option of using an alternate netrc file, so you don’t need to setup one at $HOME/.netrc.

I believe you just need a one liner like this:

machine 192.163.3.3 login ftpuser password apple

Unfortunately, I can’t test it because I don’t have ftp setup anywhere. Everything here is scp/ssh/sftp. Here’s an example .netrc file.