Re: fork and hanging

nazrat <newtan@xxxxxxxxx> wrote:

In this setting, I have an 'expect' script (spawn.exp) used to cache
the password and feed it to spawned processes (ssh.pl). I am not sure
if there is any animosity between Perl fork and ssh that I am not
aware of?

% ./spawn.exp ./ssh.pl

I think I'd try having ssh.pl call spawn.exp, not the other way around.
If a single expect is trying to talk to many different processes over
the same file handles at the same time, I wouldn't be surprised if things
often go awry.


....

exec 'ssh', "build-$id", 'uname', '-a';

exec "./spawn.exp ssh build-$id uname -a";

Or something like that, I don't use expect.

Xho

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