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

instead of using named variables, develop the practice of using the positional parameters, like this:

set -- $( lspci -s 0a.00.1 );   # then the bash string usage:
echo ${1:(-4)}                  # has the advantage of allowing N PP's to be set, eg:

set -- $(ls *.txt)
echo $4                         # prints the 4th txt file.