config root man

.\" Copyright (c) 1980, 1990, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"	@(#)from.1	8.2 (Berkeley) 12/30/93
.\" $FreeBSD: release/9.1.0/usr.bin/from/from.1 216370 2010-12-11 08:32:16Z joel $
.\"
.Dd December 30, 1993
.Dt FROM 1
.Os
.Sh NAME
.Nm from
.Nd print names of those who have sent mail
.Sh SYNOPSIS
.Nm
.Op Fl c
.Op Fl f Ar file
.Op Fl s Ar sender
.Op Ar user
.Sh DESCRIPTION
The
.Nm
utility prints
out the mail header lines from the invoker's mailbox.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl c
Just print a count of messages and exit.
.It Fl f Ar file
The supplied
.Ar file
is examined instead of the invoker's mailbox.
If the
.Fl f
option is used, the
.Ar user
argument should not be used.
Read from standard input if file name
.Dq Fl
is given.
.It Fl s Ar sender
Only mail from addresses containing
the
supplied string are printed.
.El
.Pp
If
.Ar user
is given, the
.Ar user Ns 's
mailbox is examined instead of the invoker's own mailbox.
(Privileges are required.)
.Sh ENVIRONMENT
.Bl -tag -width indent
.It Ev MAIL
If set, the location of the invoker's mailbox.
Otherwise, the default in
.Pa /var/mail
is used.
.El
.Sh FILES
.Bl -tag -width ".Pa /var/mail/*" -compact
.It Pa /var/mail/*
.El
.Sh SEE ALSO
.Xr biff 1 ,
.Xr mail 1
.Sh HISTORY
The
.Nm
command appeared in
.Bx 3.0 .