autoconfig.sh

#/bin/bash

if [ "$#" -ne 3 ]; then
    echo "Illegal number of parameters"
    echo "Usage: autoconfig.sh ip block hostame"
    echo "Exemple: autoconfig.sh 177.20.20.4 172.20.20.0 tpreseau4"
    exit 1
fi

ip=$1
block=$2
hostname=$3
exec > /tmp/interface.tmp

d1=$(echo "$block" | cut -d'.' -f1)
d2=$(echo "$block" | cut -d'.' -f2)
d3=$(echo "$block" | cut -d'.' -f3)
d4=$(echo "$block" | cut -d'.' -f4)
echo "# The loopback network interface"
echo "auto lo "
echo "iface lo inet loopback "

echo "# The primary network interface "
echo "iface eth0 inet static "

echo "  address ${ip} "
echo "  netmask 255.255.255.0"
echo "  network ${block}"
echo "  broadcast ${d1}.${d2}.${d3}.255"
echo "  gateway  ${d1}.${d2}.${d3}.254"
mv /tmp/interface.tmp /etc/network/interface
echo $hostname > /etc/hostname
/etc/init.d/hostname.sh

/sbin/ifconfig eth0 down && /sbin/ifconfig eth0 up