csplit(1) on Linux
The text 880d3e7362a7, as Debian 7 (Wheezy) shipped it.
split a file into sections determined by context lines
Flags it lists
-
--digits -
--elide-empty-files -
--help -
--keep-files -
--prefix -
--quiet -
--silent -
--suffix-format -
--version -
-b -
-f -
-k -
-n -
-s -
-z