Xref: utzoo comp.sources.wanted:9806 alt.sources.wanted:85
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!usc!wuarchive!texbell!splut!jay
From: jay@splut.conmicro.com (Jay "you ignorant splut!" Maynard)
Newsgroups: comp.sources.wanted,alt.sources.wanted
Subject: Re: Backwards cat
Summary: Here's a way to do it with awk
Message-ID: <-YQM4+@splut.conmicro.com>
Date: 15 Dec 89 20:17:11 GMT
References: <6488@lindy.Stanford.EDU>
Reply-To: jay@splut.conmicro.com (Jay "you ignorant splut!" Maynard)
Distribution: usa
Organization: Confederate Microsystems, League City, TX
Lines: 20

In article <6488@lindy.Stanford.EDU> odin@ucscb.UCSC.EDU (Jon Granrose) writes:
>I am looking for a program that will cat a file backwards.  Not with all the
>letters reversed but one that prints the last line, then the second to last
>line, 3 from the last line, etc.)  If it doesn't exist then I will write my
>own but I thought I'd ask first.

It's probably pretty simple to do in C, but here's a quick and dirty in
awk I use to insure that my disks get unmounted in the reverse order of
being mounted:

awk '{ lines[NR] = $0 } END { for(i=NR; i>=1; i--) print lines[i]; }' <file

It's not the fastest in the world, and it's limited by awk's available
memory, but it does the job...

-- 
Jay Maynard, EMT-P, K5ZC, PP-ASEL   | Never ascribe to malice that which can
jay@splut.conmicro.com       (eieio)| adequately be explained by stupidity.
{attctc,bellcore}!texbell!splut!jay +----------------------------------------
     Here come Democrats...here come Democrats...throwing money a-way...