VOS remote ssh session with pseudo tty and shell exit code

[aaditya sood]

Hello all,

We (www.ideadevice.com) are building an IT workflow automation product
which works over ssh (among other things) to deliver bespoke
automation.
I am trying to automate running remote commands on a VOS server via
ssh (at a customer in Mumbai, India), but am stuck at one point.

I would be grateful for any help, advice or pointers the community can
provide.

The problem is that when I invoke the ssh command line client with the
-t option (Force pseudo-tty allocation) I can run remote bash commands
but do not get their exit status back. After running the shell
commands/script the sshd daemon drops me into the VOS command
processor and I cannot feed commands to it via stdin. Sample session:

ssh -t user@vos-host "echo Hello World"

prints "Hello World" and then drops into the command processor. I have
to manually type 'logout' to quit the session. I can see that my TERM
is set to vt100, even though it's a non-interactive login. The ssh
daemon does not send any exit code back (null).

The same command works with the session closing and exit code when I
use ssh without the -t option:

ssh user@vos-host "echo Hello World"
echo $?

It prints "Hello World" and returns me an exit code of 0. If command
is not found, it returns 127.
I need to use -t because I want to have job control over the processes
I create. Otherwise I can start a 'sleep 60', kill my ssh session and
the command keeps on going.

Is there something in the VOS configuration that will enable this for
me?

I have read the docs at
http://stratadoc.stratus.com/vos/17.0.2/r521-02b/wwhelp/wwhimpl/js/html/wwhelp.htm?context=r521-02b&file=ch2r521-02be.html
but unable to figure what, if any, configuration I should change.

As a last resort I can use expect like design to feed the logout
command to the command processor, and hack my way into saving the
shell exit code. But I'd rather not.

Once again, I would be grateful for any help, advice or pointers the
community can provide.

Thanks in advance

regards
--
aaditya sood
aad...@gmail.com

[Paul Green]

Hi Aaditya,

Would you please re-port your question to the "OpenVOS and VOS Forum" at
http://openvos.com ? Stratus no longer monitors this newsgroup.

Thanks
PG

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