Get the last 4 characters of output from standard out

Question

I have a script that is running and uses

lspci -s 0a.00.1 

This returns

0a.00.1 usb controller some text device 4dc9
         


        

Answer 1

I usually use

echo 0a.00.1 usb controller some text device 4dc9 | rev | cut -b1-4 | rev
4dc9