ifconfig output parser bash+awk

#!/bin/bash

red="\033[31m"
green="\033[32m"
blue="\033[34m"
yellow="\033[33m"
reset="\033[0m"

echo -e $green"Detected Interfaces"$reset
echo ""

# cmd="cat ifconfig.out"
cmd="ifconfig"

echo ee | awk '
BEGIN { RS = "" ; FS = "\n" }
{
	while ( "'"$cmd"'" | getline ){
		# print $0

		if ( $1 !~ /LOOPBACK/ ){
		
			split($1,arr," ")
			print "'"$blue"'"arr[1]"'"$reset"'"
			
			for(i = 1; i <= NF; i++) { 
				split($i,arr," ")	 
				switch ( arr[1] ) {
				    case "inet":
				        print "'"$red"'" "IPV4:" "'"$reset"'" "\n IP: " "'"$yellow"'" arr[2] "'"$reset"'" "\n NM: "arr[4]"\n BC: "arr[6] 
				        break
				    case "inet6":
				    	print "'"$red"'" "IPV6:" "'"$reset"'" "\n IP: "arr[2]"\n PL: "arr[4]
				    	break
				    case "ether":
				    	print "'"$red"'" "MAC: " "'"$reset"'" arr[2]
				    	break
	    			    default:
	    			}
			}
			print ""
		}
	}
}'

RS : Record Seperator
FS : Field Seperator
NF : Number of Fields