Mercurial > hg > anonet-resdb
view scripts/cidr2ip @ 1232:216dfce70e8e draft
added 21.104.100.0/24
author | root <root@x> |
---|---|
date | Wed, 28 Nov 2018 06:19:22 +0000 |
parents | 31e3b4edf502 |
children |
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#!/bin/sh if [ x"$1" = x ]; then echo "Usage: $0 <cidr>" >&2; exit 255 fi ip="$(echo "$1" | cut -d/ -f1)" len="$(echo "$1" | cut -d/ -f2)" if [ x"$((len%8))" != x0 ]; then echo "Prefix length must be a multiple of 8" >&2; exit 255 fi octets="$((len/8))" for x in `seq 1 $octets` ; do echo $ip | cut -d. -f$x done | tr '\n' . | head -c -1 ; echo