1.\" $OpenBSD: from.1,v 1.13 2015/06/02 15:44:17 millert Exp $ 2.\" $NetBSD: from.1,v 1.4 1995/09/01 01:39:09 jtc Exp $ 3.\" 4.\" Copyright (c) 1980, 1990, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" @(#)from.1 8.2 (Berkeley) 12/30/93 32.\" 33.Dd $Mdocdate: June 2 2015 $ 34.Dt FROM 1 35.Os 36.Sh NAME 37.Nm from 38.Nd print names of those who have sent mail 39.Sh SYNOPSIS 40.Nm from 41.Op Fl f Ar file 42.Op Fl s Ar sender 43.Op Ar user 44.Sh DESCRIPTION 45.Nm 46prints 47out the mail header lines from the invoker's mailbox. 48.Pp 49The options are as follows: 50.Bl -tag -width Ds 51.It Fl f Ar file 52The supplied file 53is examined instead of the invoker's mailbox. 54If the 55.Fl f 56option is used, the 57.Ar user 58argument should not be used. 59.It Fl s Ar sender 60Only mail from addresses containing 61the 62supplied string are printed. 63.El 64.Pp 65If 66.Ar user 67is given, the 68.Ar user Ns 's 69mailbox is examined instead of the invoker's own mailbox. 70(Privileges are required.) 71.Sh ENVIRONMENT 72.Nm 73utilizes the 74.Ev LOGNAME , 75.Ev MAIL , 76and 77.Ev USER 78environment variables. 79.Pp 80If the 81.Ev MAIL 82environment variable is set, its value is used as the path to the 83user's mail spool. 84.Sh FILES 85.Bl -tag -width /var/mail/* -compact 86.It Pa /var/mail/* 87.El 88.Sh SEE ALSO 89.Xr biff 1 , 90.Xr mail 1 91.Sh HISTORY 92The 93.Nm 94command appeared in 95.Bx 2 . 96.Sh AUTHORS 97.An Bill Joy , 981979. 99