From: Aaron Davies <agdavi01@louisville.edu>
To: zsh-users@sunsite.dk
Subject: Re: Slightly OT: Error-Handling in a Pipeline, preferably non-zsh
Date: Sun, 15 Aug 2004 23:33:04 -0400 [thread overview]
Message-ID: <FB67F66A-EF34-11D8-83BE-000502631FBD@louisville.edu> (raw)
In-Reply-To: <Pine.LNX.4.61.0408151913400.935@toltec.zanshin.com>
On Sunday, August 15, 2004, at 10:42 PM, Bart Schaefer wrote:
> On Sun, 15 Aug 2004, Aaron Davies wrote:
>
>> How do I do return-value error handling in the middle of a pipeline?
>
> Or you could skip the awk and xargs entirely and use a while loop:
>
> ps aux | grep $name | grep -v grep | grep -v $0 |
> while read user pid remainder
> do
> $@ $pid
> done
What do you think of the solution I replied to Phillipe with, using
xargs with "-r" and just checking the pipestatus to determine exit?
> As a final note, you probably want "$@" in double quotes.
Really? I used it with multi-word commands (like "kill -9") with no
problems.
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next prev parent reply other threads:[~2004-08-16 3:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-16 1:04 Aaron Davies
2004-08-16 2:42 ` Bart Schaefer
2004-08-16 3:33 ` Aaron Davies [this message]
2004-08-16 7:41 ` Bart Schaefer
2004-08-16 12:40 ` Aaron Davies
2004-08-16 14:53 ` DervishD
2004-08-17 3:06 ` Bart Schaefer
2004-08-16 3:03 ` Philippe Troin
2004-08-16 3:30 ` Aaron Davies
2004-08-16 7:51 ` Bart Schaefer
2004-08-16 12:41 ` Aaron Davies
2004-08-16 16:08 ` Dan Nelson
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