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bjoern-r/add_interfaces_dhcp.sh

Created March 8, 2018 17:10
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script to configure all unconfigured interfaces for dhcp and bring them up. Ubuntu-16.04
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add_interfaces_dhcp.sh
#!/bin/sh
# Author: bri
# Will add all interfaces in state DOWN to /etc/network/interfaces.d/auto.cfg
# with option dhcp
## for iface in `ls /sys/class/net/`; do
/sbin/ip -br l | awk '/DOWN/{print $1}' |
while read dev
do
echo "*** found device $dev"
printf "auto %s\niface %s inet dhcp\n\n" $dev $dev | tee -a /etc/network/interfaces.d/auto.cfg
done
echo "*** Bringing all interfaces up..."
ifup -a
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