alxconf-060/bin/dhcp-identifier.sh

#!/bin/bash

iface="$1"

if [[ -n ${iface} ]]
then
	if [ -e /sys/class/net/${iface}/address ]
	then
		identifier="$(cat /sys/class/net/${iface}/address)"
		identifier="${identifier//:}"
	fi
else
	if [ -e /var/cache/dhcp/client-identifier ]
	then
		identifier="$(< /var/cache/dhcp/client-identifier)"
	fi
fi

echo "${identifier}"
1	#!/bin/bash
2
3	iface="$1"
4
5	if [[ -n ${iface} ]]
6	then
7	if [ -e /sys/class/net/${iface}/address ]
8	then
9	identifier="$(cat /sys/class/net/${iface}/address)"
10	identifier="${identifier//:}"
11	fi
12	else
13	if [ -e /var/cache/dhcp/client-identifier ]
14	then
15	identifier="$(< /var/cache/dhcp/client-identifier)"
16	fi
17	fi
18
19	echo "${identifier}"