CDPR

#!/bin/bash

#interface_info=`ip link | awk -F: '$0 !~ "lo|vir|wl|docker|ext|^[^0-9]"{print $2;getline}'`
#interface_info=`ip link | awk -F: '$0 !~ "lo|vir|wl|docker|ext|ovl|stg|br-ex|genev|ovs|^[^0-9]"{print $2;getline}`
interface_info=$(ls /sys/class/net | grep -i ^en)

echo "Starting CDPR for host $HOSTNAME"
echo "Interface(s) :  $interface_info"
> sw_int_port.txt
for i in $interface_info
do
	echo "--- Interface $i :" > CDPR
	 echo "Checking Link Status ..."
	status=`ethtool $i | grep -i "Link detected: yes" | awk '{print $3}'`
	if [ $status == "yes" ]
	then 
		echo "Interface link status is UP"
		cdpr -d $i >> CDPR
		data=`cat CDPR | grep value | awk '{ print $2}'`
		#echo "Interface Data : " $data
		switch=`echo $data | awk '{print $1}'`
		#echo "Switch Information : " $switch
		port=`echo $data | awk '{print $3}'`
		echo "$switch , $port"
	fi
done