How to find CPU utlization on AIX and Linux

In AIX , we can use "topas" command to find the cpu utilization

$topas   #which displays the cpu utilization of  each process on AIX

Here we can see
1. PID of the process
2.Name of the process
3.CPU utilization
4.PgSP - Page Space
5. Owner of the process

Similarly in Linux we can use  "top"  command