From: "Bart Schaefer" <schaefer@candle.brasslantern.com>
To: "Andrej Borsenkow" <Andrej.Borsenkow@mow.siemens.ru>,
"Danny Dulai" <nirva@ishiboo.com>,
"Zsh Users' List" <zsh-users@sunsite.auc.dk>
Subject: Re: Better ( rm foo; bar > foo ) < foo ?
Date: Thu, 7 Dec 2000 17:10:51 +0000 [thread overview]
Message-ID: <1001207171051.ZM3119@candle.brasslantern.com> (raw)
In-Reply-To: <000501c06058$6ac4e110$21c9ca95@mow.siemens.ru>
On Dec 7, 5:17pm, Andrej Borsenkow wrote:
}
} Process substitutions are executed asynchronously. [...]
}
} mv =(grep one foo; grep two foo) foo
}
} second grep most probably will catch wrong file.
The original question wanted stdin redirected from the file, so it could
by definition not be read twice. In that case =(...) is "safe", except
for the case where the async command fails and the original file is lost
(which is why I suggested "mv -i" a couple of days ago).
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net
prev parent reply other threads:[~2000-12-07 17:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-03 14:01 Hannu Koivisto
2000-12-03 17:48 ` Bart Schaefer
2000-12-03 23:17 ` Hannu Koivisto
2000-12-04 2:27 ` Bart Schaefer
2000-12-03 20:24 ` Clint Adams
2000-12-07 11:44 ` Danny Dulai
2000-12-07 14:17 ` Andrej Borsenkow
2000-12-07 17:10 ` Bart Schaefer [this message]
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