NAMEcountmail - be obnoxious about how much mail you have
DESCRIPTIONThe countmail program counts your mail and tells you about it rather obnoxiously.
HISTORYThe countmail program first appeared in NetBSD 1.3. countmail was first written by Noah Friedman <firstname.lastname@example.org> in 1993. This version was written by Charles M. Hannum <mycroft@NetBSD.org>.
CAVEATSThe read loop is horrendously slow on every shell implementation tried. countmail uses from(1) and wc(1) instead, though these are not shell builtins.
SEE ALSOfrom(1) COUNTMAIL(6)