tree(1) on Linux
The text d0129a189da3, as Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.
list contents of directories in a tree-like format.
Flags it lists
-
-A -
-C -
-D -
-F -
-I -
-N -
-P -
-a -
-d -
-f -
-g -
-i -
-l -
-n -
-p -
-q -
-s -
-t -
-u -
-x