sum(1) on macOS
The text f55dc9f64556, as Mac OS X 10.1.5, Mac OS X 10.1.4, Mac OS X 10.1.3, Mac OS X 10.1.2, Mac OS X 10.1.1, Mac OS X 10.1, Mac OS X 10.0.4, Mac OS X 10.0 shipped it.
display file checksums and block counts
Flags it lists
-
-m -
-o -
-p -
-s -
-t -
-x