iostat(8) on FreeBSD
The text 26c28ac4fbc3, as FreeBSD 11.4-RELEASE shipped it.
report I/O statistics
Flags it lists
-
-? -
-C -
-I -
-K -
-M -
-N -
-T -
-c -
-d -
-h -
-n -
-o -
-t -
-w -
-x -
-z