Best way to extract MAC address from ifconfig's output?

Question

What is the best way to extract the MAC address from ifconfig\'s output?

Sample output:

bash-3.00# ifconfig eth0        
eth0      Link          


        

Answer 1

this worked for me

ifconfig eth0 | grep -o -E ..:..:..:..:..:..

instead of eth0 you can write the interface you need it's mac address