How do i list processes using the most cpu or memory using the bsd ps command?

saolasosme

The first line is the header line so using number 6.

       --sort spec
              Specify sorting order.  Sorting syntax is
              [+|-]key[,[+|-]key[,...]].  Choose a multi-letter key from the
              STANDARD FORMAT SPECIFIERS section.  The "+" is optional since
              default direction is increasing numerical or lexicographic
              order.  Identical to k.  For example: ps jax --sort=uid,-ppid,
              +pid

Memory.

$ ps aux --sort=pmem | head -n 6

CPU.

$ ps aux --sort=pcpu | head -n 6