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#!/bin/bash
# this script updates hosts in /etc/hosts
# currently the only applicable host is my homeserver (local or remote ip)
while [[ true ]]; do
localcheck=`nmap -sn 192.168.1.0/24 | grep debian`
if [[ $localcheck ]]; then
hb_ip=`echo $localcheck | sed 's/.*(\(.*\))/\1/g'`
else
hb_ip=`ping grothe.ddns.net -c 1 | grep PING | awk '{print $3}' | sed 's/(\|)//g'`
fi
#sed -i 's/'${hb_ip}'.*//g' /etc/hosts
sed -i '/.*hb/d' /etc/hosts
echo "${hb_ip} hb" >> /etc/hosts
sleep 360
done
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