NAME countmail — be obnoxious about how much mail you have
DESCRIPTION The countmail program counts your mail and tells you about it rather obnoxiously.
HISTORY The countmail program first appeared in NetBSD 1.3.
was first written by <firstname.lastname@example.org
> in 1993. This version was written by <mycroft@NetBSD.org>.
The read loop is horrendously slow on every shell implementation tried. countmail
instead, though these are not shell builtins.