ssh host echo bla | echo bla

[Nicolas Williams]

On Tue, Dec 18, 2001 at 02:37:53AM +0300, Michael Tokarev wrote:
> Nicolas Williams wrote:
> []
> >  - with -1, if stdout is a dead pipe, then ssh trie to open /dev/tty?
> >  - with -2, if stdout is a dead pipe, then ssh exits?
> > 
> > Why should one behaviour be correct and the other not?
> > 
> > I mean, if you've got a broken pipe, print a message to stderr about it,
> > and if that's broken too, oh well. Either way exit.
> > 
> > So I would say that the -1 behaviour is forgiving, but the -2 behaviour
> > is correct.
> 
> Them aren't consistent at the end.  And -2 doesn't print the error
> message (and not tries to logon to remote host).  Can't say about
> logging in to remote, but the error message should be printed in
> both cases (stderr isn't closed, it's ssh's stdout that's closed).
> And both should exit with non-zero return code (imho):

Yes, the -2 should print an error; but what if stderr is also a broken
pipe? (Think "ssh -2 host /bin/echo foo 2>&1 | /bint/true").

And you're right about the exit status.

> Regards,
>  Michael.


Nico
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