$ ps
PID TTY TIME CMD
98381 pts/1 00:00:00 bash
98689 pts/1 00:00:00 ps
$ ps aux | head
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.4 104976 9356 ? Ss Sep12 0:21 /sbin/init
root 2 0.0 0.0 0 0 ? S Sep12 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? I< Sep12 0:00 [rcu_gp]
root 4 0.0 0.0 0 0 ? I< Sep12 0:00 [rcu_par_gp]
root 6 0.0 0.0 0 0 ? I< Sep12 0:00 [kworker/0:0H-kblockd]
root 9 0.0 0.0 0 0 ? I< Sep12 0:00 [mm_percpu_wq]
root 10 0.0 0.0 0 0 ? S Sep12 0:16 [ksoftirqd/0]
root 11 0.0 0.0 0 0 ? I Sep12 0:09 [rcu_sched]
root 12 0.0 0.0 0 0 ? S Sep12 0:00 [migration/0]