Path: utzoo!attcan!lsuc!ncrcan!hcr!david
From: david@hcr.UUCP (David Fiander)
Newsgroups: comp.unix.questions
Subject: Re: sorting and reversing lines of a file
Keywords: sort reverse
Message-ID: <4832@hcr.UUCP>
Date: 31 Jan 89 17:59:27 GMT
References: <9056@burdvax.PRC.Unisys.COM>
Reply-To: david@zeus.UUCP (David Fiander)
Organization: HCR Corporation, Toronto
Lines: 40

In article <9056@burdvax.PRC.Unisys.COM> lang@pearl.UUCP writes:
>
>I need utilities to do two things:
>(1) reverse the order of lines in a file
>    but leave the lines themselves intact.
>    The Unix utility does just the opposite of this.

<Sanity check: I'm about to think of something Doug Gwyn hasn't>

If you don't need the file reversing as a filter,  which it in practice won't
behave as anyway, then ed will do just what you want:

	Script started on Tue Jan 31 12:47:35 1989
	$ cat demo
	line 1
	line 2
	line 3
	line 4
	line 5
	$ ed demo <<EOF
*>	> g/^/m0
*>	> w
*>	> q
*>	> EOF
	35
	35
	$ cat demo
	line 5
	line 4
	line 3
	line 2
	line 1
	$
	script done on Tue Jan 31 12:48:56 1989

Pretty nifty, eh?
--------
David Fiander (...!hcr!david)

"Jolt:  All the sugar and twice the caffeine of the leading colas"