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#!/usr/bin/sh
# @(#) $Id: arp2ethers 1001 2009-07-13 07:32:35Z leres $ (LBL)
#
# Convert arp.dat to ethers format
#
# - sort on timestamp, newest first
# - discard entries without simple hostnames
# - discard all but first occurance of each ethernet address
# - discard entires with raw ip addresses for simple names
# - remove ip address and timestamp fields
# - append "-ip" to hosts with decnet address too
# - append "-old", "-old1", etc. as necessary
# - sort
#
sort -k 2 -rn arp.dat |
awk 'NF == 4 { print }' |
awk -f p.awk |
egrep -v '\.[0-9][0-9]*$' |
sed -e 's/ .* / /' |
awk -f d.awk |
awk -f e.awk |
sort