from(1) on FreeBSD
The text 409645d86e4b, as FreeBSD 11.2-RELEASE shipped it.
print names of those who have sent mail
Flags it lists
-
-c -
-f -
-s
The text 409645d86e4b, as FreeBSD 11.2-RELEASE shipped it.
print names of those who have sent mail
-c
-f
-s