erb1.9(1) on Linux
The text f4fbe03b3fe9, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it. The page shows this text now.
an embedded Ruby language interpreter
Flags it lists
-
-K -
-P -
-S -
-T -
-d -
-n -
-r -
-v -
-x