I am writing a script to automatically connect via ftp from a CentOS-5 host to one of our older (non-*nix OS) systems. The only common protocol that the remote host supports is ftp. What I want to do is to capture the initial response that comes back from that host before the user credentials are passed and log this information.
I cannot seem to hit upon the right set of redirects to make this happen. In my script I invoke ftp thus:
ftp -un "$TARGET_HOST" << EOS >> ${LOGGING_FILE} 2>&1 user $LOGON dir quit EOS
When I connect to the host via ftp interactively from a session then I see this:
Connected to host.domain.tld. 220 HP ARPA FTP Server [A0012H15] (C) Hewlett-Packard Co. 2000 [PASV SUPPORT] Remote system type is MPE/iX.
However, the first line that I find in the logging file is the results of the dir command following the user command. Can someone tell me how I can capture and log the initial response to the ftp connection?
Thanks,
On Thu, 2 Jun 2011, James B. Byrne wrote:
tell me how I can capture and log the initial response to the ftp connection?
man expect
It is usually straightforward to capture a transcript of a session, and then abstract away the needed prompts and responses (The ORA 'Exploring Expect' by Don Libes should be read and studied by every sysadmin wanting to be more than a bike-shed painter -- I use such problems to train PFY on their road to BOFH'hood)
As I recall FTP has some parts in its protocol, as does telnet (another ancient protocol) that are sent to varying file handles, and with varying 'echo' to console stty options, in setting up connection options
-- Russ herrold
R P Herrold wrote:
On Thu, 2 Jun 2011, James B. Byrne wrote:
tell me how I can capture and log the initial response to the ftp connection?
man expect
It is usually straightforward to capture a transcript of a session, and then abstract away the needed prompts and responses (The ORA 'Exploring Expect' by Don Libes should be read and studied by every sysadmin wanting to be more than a bike-shed painter -- I use such problems to train PFY on their road to BOFH'hood)
As I recall FTP has some parts in its protocol, as does telnet (another ancient protocol) that are sent to varying file handles, and with varying 'echo' to console stty options, in setting up connection options
-- Russ herrold
There is also script autoexpext? that creates a script based on user commands (you do it once manually and commands are saved). The use logging facility of expect to log what you need.
Ljubomir
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James B. Byrne -
Ljubomir Ljubojevic -
R P Herrold