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Date: Wed, 25 Jan 2006 09:43:54 -0500 (EST)
From: Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>
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To: cygwin AT cygwin DOT com
Subject: Re: Shell (bash, (pd)ksh, zsh, /not/ ash) + exec + here-doc +redirect  == trouble!
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On Wed, 25 Jan 2006, Bas van Gompel wrote:

> Hi,
>
> Try the following script:
>
> === begin testexec.sh ===
> #!/bin/ksh
> exec 5<&0 /bin/ksh <<EOSH
> echo "First exec: Done."
> exec 0<&5
> echo "Second exec: Done."
> exit 0
> EOSH
> ==== end testexec.sh ====

You might want to quote <<'EOSH', but that's not the cause of your
problem.  Here's a funny thing:

#!/bin/bash
exec 5<&0 /bin/bash <<'EOSH'
echo "First exec: Done."
cat
exec 0<&5
echo "Second exec: Done."
exit 0
EOSH

works for me.  Don't ask me why, though.  Perhaps Eric will chime in.

> Has anybody got a clue?
>
> Is this cygwin-specific?

That's easy to check.  It isn't.  I get the same behavior with bash-3.0 on
Linux.

> Are all these shells borrowing code from each other?

Most definitely not.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha AT cs DOT nyu DOT edu | igor AT watson DOT ibm DOT com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte."
"But no -- you are no fool; you call yourself a fool, there's proof enough in
that!" -- Rostand, "Cyrano de Bergerac"

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