pstree(1) on Linux
The text 23d2e058682b, as Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo), Debian 1.2 (Rex) shipped it.
display a tree of processes
Flags it lists
-
-G -
-U -
-V -
-a -
-c -
-h -
-l -
-n -
-p -
-u