replaced the depricated ifconfig command by the ip command

libuavcan_drivers/linux/scripts/uavcan_add_vcan

@@ -19,11 +19,14 @@ if [ "$1" == '--help' ] || [ "$1" == '-h' ]; then echo "$HELP"; exit; fi
 
 IFACE="$1"
 
-if [ $(ifconfig -a | grep -c "^$IFACE") -eq "1" ]; then
-    ifconfig $IFACE up
+ip link show $IFACE > /dev/null
+if [ $? == 0 ]; then
+    ip link set up $IFACE
     exit
 fi
 
+echo  "load driver and start $IFACE" 
+
 modprobe can
 modprobe can_raw
 modprobe can_bcm
@@ -32,6 +35,4 @@ modprobe vcan
 ip link add dev $IFACE type vcan
 ip link set up $IFACE
 
-ifconfig $IFACE up || exit 1
-
 echo "New iface $IFACE added successfully. To delete: ip link delete $IFACE"