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Subject: Re: sort(1) sorting IP (v4) addresses (INET_ATON?)
To: bsd-lists@BSDforge.com, FreeBSD Hackers <freebsd-hackers@freebsd.org>
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From: Craig Leres <leres@ee.lbl.gov>
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Date: Wed, 29 Nov 2017 10:37:25 -0800
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On 11/29/17 10:35, Chris H wrote:
> I'm constantly dealing with IPv4 addresses (millions). Sorting the mass
> is never perfect, and I'm forced to *visually* fix those out of order.
> Yet I continue to (later) find some I've missed -- I'm sick of it!
> Thus far, I've found I attain the best results with sort(1):
> 
> sort -t . -k 4,4n -k 3,3n -k 2,2n  ./TCPLIST | sort -g>./SORTED
> 
> Which ends up pretty damn close. But not perfect.

% grep sortip ~/.cshrc
a sortip "sort -t. +0 -1n +1 -2n +2 -3n +3 -4n"

		Craig