A Complete Example FTP Session
Let us now look at an examle FTP where many of the commands above are used in practice. We do the following:- connect to the year1 server -- open,
- list the files -- dir,
- change directory -- cd,
- list directories contents -- dir,
- set binary transfer mode: to download the gif file correctly -- (bin)ary,
- download a single file -- get
- turn prompt on: to allow interactive multiple get),
- perform a multiple get: note prompt we get and MUST acknowledge -- mget, and
- finally close the connection .
The FTP Session looks like this:
ftp> open ftp.cs.cf.ac.uk
Connected to thrall.cs.cf.ac.uk.
220-************************************************************************
220- Cardiff Computer Science campus ftp access. Access is available
220- here as anonymous, by ftp group or by username/password.
220-
220- The programs and data held on this system are the property of the
220- Department of Computer Science in the University of Wales, Cardiff.
220- They are lawfully available to authorised Departmental users only.
220- Access to any data or program must be authorised by the Department
220- of Computer Science.
220-
220- It is a criminal offence to secure unauthorised access to any programs
220- or data on this computer system or to make any unauthorised
220- modification to its contents.
220-
220- Offenders are liable to criminal prosecution. If you are not an
220- authorised user do not log in.
220-************************************************************************
220-
220-Cardiff University. Department of Computer Science.
220-This is the WUSL ftp daemon. Please report problems to
220-Robert.Evans@cs.cf.ac.uk.
220-
220 thrall.cs.cf.ac.uk FTP server (Version wu-2.6.1(1) Mon Sep 18 12:45:30 BST 2000) ready.
Name (ftp.cs.cf.ac.uk:dave): year1
331 Password required for year1.
Password:
230-
230-Welcome to the guest ftp server for Year 1 Internet Computing
230-in the Department of Computer Science at the University of Wales, Cardiff.
230-
230-Please note that all commands and transfers from this ftp account
230-are logged and kept in an audit file.
230-
230-
230 User year1 logged in. Access restrictions apply.
ftp> dir
200 PORT command successful.
150 Opening ASCII mode data connection for /bin/ls.
total 32
drwxrwxrwx 2 y1ftp 2048 Nov 8 1999 ex_gif
drwxrwxrwx 2 y1ftp 2048 Nov 8 1999 ex_hqx
drwxrwxrwx 2 y1ftp 2048 Nov 8 1999 ex_text
drwxrwxrwx 2 y1ftp 2048 Nov 8 1999 ex_uu
drwxrwxrwx 2 y1ftp 2048 Nov 8 1999 ex_zip
drwxr-xr-x 2 y1ftp 512 Oct 18 1999 exercise
drwxrwxr-x 2 gueftp 2048 Nov 5 1999 incoming
drwx--x--x 2 staff 1024 Nov 11 1999 marker
drwxrwxr-x 2 gueftp 2048 Nov 10 1999 test
226 Transfer complete.
489 bytes received in 0.0032 seconds (148.17 Kbytes/s)
ftp> cd exercise
250 CWD command successful.
ftp> dir
200 PORT command successful.
150 Opening ASCII mode data connection for /bin/ls.
total 156
-rw-rw-r-- 1 staff 25943 Dec 8 1997 ex.gif
-rw-rw-r-- 1 staff 53104 Oct 18 1999 ex.txt
226 Transfer complete.
117 bytes received in 0.0066 seconds (17.22 Kbytes/s)
ftp> bin
200 Type set to I.
ftp> get ex.gif
200 PORT command successful.
150 Opening BINARY mode data connection for ex.gif (25943 bytes).
226 Transfer complete.
local: ex.gif remote: ex.gif
25943 bytes received in 0.072 seconds (350.60 Kbytes/s)
ftp> prompt
Interactive mode on.
ftp> mget *.*
mget ex.gif? y
200 PORT command successful.
150 Opening BINARY mode data connection for ex.gif (25943 bytes).
226 Transfer complete.
local: ex.gif remote: ex.gif
25943 bytes received in 0.067 seconds (378.46 Kbytes/s)
mget ex.txt? y
200 PORT command successful.
150 Opening BINARY mode data connection for ex.txt (53104 bytes).
226 Transfer complete.
local: ex.txt remote: ex.txt
53104 bytes received in 0.13 seconds (387.51 Kbytes/s)
ftp> close
221-You have transferred 184037 bytes in 5 files.
221-Total traffic for this session was 186865 bytes in 9 transfers.
221-Thank you for using the FTP service on thrall.cs.cf.ac.uk.
221 Goodbye.
ftp>
Make sure that you can pick out the different ftp commands and responses in this output. Notice that the ftp responses are only displayed when the verbose feature is turned on.
Taken From: http://www.cs.cf.ac.uk/Dave/Internet/node118.html
