The GNU long parameters
You can combine GNU long parameters with either Unix- or BSD-style parameters to really customize your display. One cool feature of GNU long parameters with the –forest parameter. It displays the hierarchical process information, but using ASCII characters to draw cute charts:
root      3420     1  2 08:55 ?        00:00:00 /usr/sbin/apache2 -k start
www-data  3428  3420  0 08:55 ?        00:00:00  \_ /usr/sbin/apache2 -k start
www-data  3431  3420  0 08:55 ?        00:00:00  \_ /usr/sbin/apache2 -k start
www-data  3432  3420  0 08:55 ?        00:00:00  \_ /usr/sbin/apache2 -k start
www-data  3433  3420  0 08:55 ?        00:00:00  \_ /usr/sbin/apache2 -k start
www-data  3434  3420  0 08:55 ?        00:00:00  \_ /usr/sbin/apache2 -k start
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