Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!mips!ultra!marc
From: marc@mercutio.ultra.com (Marc Kwiatkowski {Host Software-AIX})
Newsgroups: comp.unix.shell
Subject: Re: cat, pipes, and filters
Message-ID: <1991Jun1.011132.2349@ultra.com>
Date: 1 Jun 91 01:11:32 GMT
References: <1991May31.165446.1530@progress.com>
Sender: marc@ultra.com (Marc Kwiatkowski {Host Software-AIX})
Organization: Ultra Network Technologies
Lines: 16
In-Reply-To: root@progress.COM's message of 31 May 91 16:54:46 GMT

In article <1991May31.165446.1530@progress.com> root@progress.COM (Root of all Evil) writes:

	[stuff about inability to redirect standard in and standard
	 out to the same file omitted.]

This problem and a good solution are discussed thoroughly in 
"The Unix Programming Environment, B.W. Kernighan and R. Pike, 
Prentice Hall, ISBN 0-13-937699-2."  They provide a generalized 
bourne shell script that will work with any arbitrary command, and is 
fairly robust, called "overwrite"

-- 
        Marc P. Kwiatkowski			Ultra Network Technologies
        Internet: marc@ultra.com		101 Daggett Drive
        uucp: ...!ames!ultra!marc		San Jose, CA 95134 USA
        telephone: 408 922 0100 x249