/usr/web/sources/contrib/boyd/sys/src/cmd/ipsort.html

Plan 9 from Bell Labs’s /usr/web/sources/contrib/boyd/sys/src/cmd/ipsort.html


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#!/bin/sh

#
# ipsort
#
# A filter to sort a file like /etc/hosts by IP address.
#

ip='[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*'

sed "s/^\($ip\)/\1./" | sort -n -t. +0 -1 +1 -2 +2 -3 +3 -4 | sed "s/^\($ip\)./\1/"
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&copy 1998,
Boyd Roberts:
<A HREF="mailto:boyd@fr.inter.net">boyd@fr.inter.net</A>
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