ab(1) on Linux
The text 16c8e8cf8b77, as Debian 8 (Jessie) shipped it.
Apache HTTP server benchmarking tool
Flags it lists
-
-A -
-B -
-C -
-H -
-P -
-S -
-T -
-V -
-X -
-Z -
-b -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-k -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-u -
-v -
-w -
-x -
-y -
-z