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BIFF(1)                 FreeBSD General Commands Manual                BIFF(1)

NAME
     biff - be notified if mail arrives and who it is from

SYNOPSIS
     biff [n | y | b]

DESCRIPTION
     The biff utility informs the system whether you want to be notified when
     mail arrives during the current terminal session.

     The following options are available:

     n       Disable notification.

     y       Enable header notification.

     b       Enable bell notification.

     When header notification is enabled, the header and first few lines of
     the message will be printed on your terminal whenever mail arrives.  A
     ``biff y'' command is often included in the file .login or .profile to be
     executed at each login.

     When bell notification is enabled, only two bell characters (ASCII \007)
     will be printed on your terminal whenever mail arrives.

     The biff utility operates asynchronously.  For synchronous notification
     use the MAIL variable of sh(1) or the mail variable of csh(1).

DIAGNOSTICS
     The biff utility exits with one of the following values:

     0       Notification is enabled.

     1       Notification is disabled.

     >1      An error occurred.

SEE ALSO
     csh(1), mail(1), sh(1), comsat(8)

HISTORY
     The biff command appeared in 4.0BSD.  It was named after the dog of Heidi
     Stettner.  He died in August 1993, at 15.

FreeBSD 11.0-PRERELEASE         August 9, 2002         FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | SEE ALSO | HISTORY

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