when you do top command it will show the highly cpu consumable process in the top list.

if you want to capture and process the output of the top command then, you need to add some parameters to the top command.

-b –> batch mode operation
-n –> how many iterations

simply execute the command top -b -n1

The above command will give the output of the top command, Try it out and let me know if you have any doubts..