split(1) on macOS
The text 04d4a05fca41, as macOS 13.5, macOS 13.4, macOS 13.3, macOS 13.2, macOS 13.1, macOS 13.0, macOS 12.5, macOS 12.4, macOS 12.3 shipped it.
split a file into pieces
Flags it lists
-
-a -
-b -
-d -
-l -
-n -
-p