From mboxrd@z Thu Jan  1 00:00:00 1970
From: ichi@ihug.co.nz
Subject: Re: inverting a list
Date: Sun, 21 Jul 2002 12:31:32 +0000
Sender: linux-newbie-owner@vger.kernel.org
Message-ID: <3D3AA9A4.AD7C28E@ihug.co.nz>
References: <20020720.175417.-315329.2.matthewstapleton@juno.com>
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To: Matthew Stapleton <matthewstapleton@juno.com>
Cc: linux-newbie@vger.kernel.org

Matthew Stapleton wrote:
> 
> Can I use linux text utilities to invert the lines of 
> a text file?  Say that the lines of the file are 50.  
> (1,2, ...50)  How can I change the order the of lines 
> so that line 1 is now line 50?

Here's one off the top of my head.  I'm sure 
that somebody can come up with a better one.
---------------------------
#!/bin/bash
i=`cat $1|wc -l`
until [ $i = 0 ]
do head -n $i $1|tail -n 1
let i=i-1
done
---------------------------

Cheers,
Steven

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