From owner-cvs-all  Wed May  8 12:54: 3 2002
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Date: Wed, 8 May 2002 12:53:16 -0700
From: "Crist J. Clark" <cjc@FreeBSD.org>
To: Tony Finch <dot@dotat.at>
Cc: Alfred Perlstein <bright@mu.org>, John Baldwin <jhb@FreeBSD.org>,
	"J. Mallett" <jmallett@FreeBSD.org>,
	Garrett Rooney <rooneg@electricjellyfish.net>,
	cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/usr.bin/sed main.c sed.1
Message-ID: <20020508125316.F94469@blossom.cjclark.org>
References: <20020507191959.GA26441@FreeBSD.ORG> <XFMail.20020507153353.jhb@FreeBSD.org> <20020507205541.GL36741@elvis.mu.org> <20020507221134.A26336@chiark.greenend.org.uk>
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In-Reply-To: <20020507221134.A26336@chiark.greenend.org.uk>; from dot@dotat.at on Tue, May 07, 2002 at 10:11:34PM +0100
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On Tue, May 07, 2002 at 10:11:34PM +0100, Tony Finch wrote:
> On Tue, May 07, 2002 at 01:55:41PM -0700, Alfred Perlstein wrote:
> > 
> > Just open and then unlink the source file then recreate it as the
> > output file.
> 
> That's no good if there's a failure, e.g. disk full.

Well, since everyone else seems to have an opinion as to the color of
the sed(1) shed...

I think sed(1) is the wrong tool for this. We already have a tool that
does "inline" editing, ed(1),

  $ ed somefile.txt <<EOF
  ,s/blah/blee/
  wq
  EOF

IMHO, it would be much more logical to add an '-i' option to ed(1) and
an '-e' option for command line ed commands,

  $ ed -i old -e ',s/blah/blee/' somefile.txt

(And the 'wq' are implied by the usage). A lot of the other issues
(handling file operations) are already dealt with in ed(1).
-- 
Crist J. Clark                     |     cjclark@alum.mit.edu
                                   |     cjclark@jhu.edu
http://people.freebsd.org/~cjc/    |     cjc@freebsd.org

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