pstree(1) on Linux
The text a4ae79a9d9f0, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
display a tree of processes
Flags it lists
-
-A -
-G -
-H -
-U -
-V -
-Z -
-a -
-c -
-h -
-l -
-n -
-p -
-u