Dbiff attempts to provide email notification in a
form similar to biff+comsat, but without the need
for a comsat daemon. Rather, a copy of each email
is filtered through the dbiff program using a mail
delivery agent such as procmail, and dbiff then
displays a summary of the message on each of the
user's terminals that has the executable bit set.
dbiff can also provide a condensed format similar
to that used by djb's qbiff, and a bell mode like
that available in FreeBSD. The bell mode is
accessible either by setting a terminal's group
executable bit ('biff b' in FreeBSD) or by using a
flag in the dbiff command. An option is also
available to write the email message only to the
most recently used terminal.
