Re: When to use Interactive (PTY) or Non-Interactive

[Jakub Jelen <jjelen@xxxxxxxxxx>]

On Tue, 2020-06-23 at 16:19 +0000, V Sidnal, Nagraju wrote:
> Dear All,
> 
> As LibSSH supports both, Interactive(PTY) and non-interactive
> approach to EXECUTE command on remote server/Machine.
> I would like to know when to opt for Interactive or Non-interactive.?
> On what  basis, we need to decide which one to opt for? What are the
> pro and cons?

If you use interactive PTY, you will need to communicate with the
remote terminal and interpret terminal control characters, which are in
really useful only for interactive shell sessions.

If you are interested only in running some command and getting text
outputs, you should be fine without PTY.

Note, that some application require interactive sessions (for example
openssh password prompts or sudo prompts), generally to have better
confidence that user is really requesting that action, but it is
probably not your case.

Regards,
-- 
Jakub Jelen
Senior Software Engineer
Security Technologies
Red Hat, Inc.