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Top Forums Shell Programming and Scripting Read several variables from command output via SSH Post 303039909 by jim mcnamara on Thursday 17th of October 2019 09:58:27 AM
Old 10-17-2019
ssh calls stty to do things like turn off/on echo. When the terminal stdin device is not what ssh expected you get the stty error. Try simply executing the ssh command making sure it can use the controlling terminal device with stty and using ssh keys:
Code:
ssh me@somplace 'my command goes here ' > output_file
# output_file now has your result it in it,  so you can read the file to get your variables.

I may be missing something but this has happened to me before and my workaround was okay. Still is.

One caveat - if you are running under ksh (does appear to be in this case) then be sure there are no stty commands in the current directory's .kshrc, that also causes this problem.
 

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SSH-ARGV0(1)						    BSD General Commands Manual 					      SSH-ARGV0(1)

NAME
ssh-argv0 -- replaces the old ssh command-name as hostname handling SYNOPSIS
hostname | user@hostname [-l login_name] [command] hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name] [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command] DESCRIPTION
ssh-argv0 replaces the old ssh command-name as hostname handling. If you link to this script with a hostname then executing the link is equivalent to having executed ssh with that hostname as an argument. All other arguments are passed to ssh and will be processed normally. OPTIONS
See ssh(1). FILES
See ssh(1). AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0. Jonathan Amery wrote this ssh-argv0 script and the associated documentation. SEE ALSO
ssh(1) Debian Project September 7, 2001 Debian Project
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