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From: Timothy J Luoma <luomat+Lists/Zsh/users@luomat.peak.org>
To: talley@boulder.Central.Sun.COM (Steve Talley)
Cc: zsh-users@math.gatech.edu
Subject: Re: exit value of intermediate program in pipe
Date: Sat,  2 May 98 21:38:27 -0400	[thread overview]
Message-ID: <199805030138.VAA26176@luomat.peak.org> (raw)
In-Reply-To: <199805022224.QAA03113@ipecac.Central.Sun.COM>

	Author:        talley@boulder.Central.Sun.COM (Steve Talley)
	Original-Date: Sat, 2 May 1998 16:24:40 -0600
	Message-ID:    <199805022224.QAA03113@ipecac.Central.Sun.COM>

> foo () {
> /bin/blah | grep -v "foo"
> }
>
> I would like this function to exit with the exit value from the
> /bin/blah process, but it exits with the exit value from grep instead.
>
> Is there any way to do this?

Do you ming a tempfile ?

foo () {
	tmp=/tmp/$0.$USER.$$

	/bin/blah > $tmp 2>&1
	exit="$?"
	
	grep -v foo $tmp && /bin/rm -f $tmp
	
	exit $exit

}

You don't have to use /tmp as the tempdir if you have security concerns..  
$HOME would work just as well.

TjL

ps -- if you use this function in your shell, doesn't it kill the shell ?



  parent reply	other threads:[~1998-05-03  1:41 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-05-02 22:24 Steve Talley
1998-05-03  0:50 ` Sweth Chandramouli
1998-05-03  1:38 ` Timothy J Luoma [this message]
1998-05-03  2:08 ` Bart Schaefer
1998-05-03  6:17   ` Sweth Chandramouli
1998-05-03  9:30     ` Bart Schaefer
1998-05-03 22:15       ` Sweth Chandramouli
1998-05-04  1:35         ` Bart Schaefer
1998-05-04  4:54           ` Sweth Chandramouli
1998-05-04  9:43             ` Bernd Eggink
1998-05-04 11:42               ` Bart Schaefer
1998-05-04 12:03                 ` Bernd Eggink
1998-05-04 15:59                   ` Bart Schaefer
1998-05-05 11:39                     ` Bernd Eggink
1998-05-05 17:03                       ` zsh vs. ksh coproc redirection semantics Bart Schaefer
1998-05-06 10:47                         ` Bernd Eggink
1998-05-06 16:00                           ` Bart Schaefer
1998-05-07  7:17                             ` Zoltan Hidvegi
1998-05-07  8:34                               ` Andrew Main
1998-05-07  9:26                                 ` Bart Schaefer
1998-05-07  9:34                                   ` Andrew Main
1998-05-07 17:02                                   ` Zoltan Hidvegi
1998-05-07  9:18                               ` Bart Schaefer
1998-05-07 17:10                                 ` Zoltan Hidvegi
1998-05-05 11:54 exit value of intermediate program in pipe Bernd Eggink

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