Example: ps -au returns something like:
| USER | PID | %CPU | %MEM | VSZ | RSS | TTY | STAT | START | TIME | COMMAND |
| gregory | 7819 | 0.3 | 0.5 | 4036 | 1368 | pts/0 | S | 16:02 | 0:00 | -bash |
| root | 7849 | 0.1 | 0.3 | 3748 | 964 | pts/0 | S | 16:02 | 0:00 | su |
| root | 7850 | 0.7 | 0.5 | 4088 | 1444 | pts/0 | S | 16:02 | 0:00 | bash |
| root | 7853 | 0.0 | 0.2 | 2468 | 640 | pts/0 | R | 16:02 | 0:00 | ps -au |