232 lines
5.9 KiB
Groff
232 lines
5.9 KiB
Groff
.\" $NetBSD: msgs.1,v 1.16 2003/08/07 11:15:17 agc Exp $
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.\"
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.\" Copyright (c) 1980, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)msgs.1 8.2 (Berkeley) 4/28/95
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.\"
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.Dd April 28, 1995
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.Dt MSGS 1
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.Os
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.Sh NAME
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.Nm msgs
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.Nd system messages and junk mail program
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.Sh SYNOPSIS
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.Nm
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.Op Fl fhlpqr
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.Op Ar number
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.Op Ar \-number
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.Nm
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.Op Fl s
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.Nm
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.Op Fl c Op Ar days
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.Sh DESCRIPTION
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.Nm
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is used to read system messages.
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These messages are
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sent by mailing to the login `msgs' and should be short
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pieces of information which are suitable to be read once by most users
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of the system.
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.Pp
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.Nm
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is normally invoked each time you login, by placing it in the file
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.Pa .login
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(or
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.Pa .profile
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if you use
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.Xr sh 1 ) .
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It will then prompt you with the source and subject of each new message.
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If there is no subject line, the first few non-blank lines of the
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message will be displayed.
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If there is more to the message, you will be told how
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long it is and asked whether you wish to see the rest of the message.
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The possible responses are:
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.Bl -tag -width Ic
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.It Ic y
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Type the rest of the message.
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.It Ic RETURN
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Synonym for y.
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.It Ic n
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Skip this message
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and go on to the next message.
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.It Ic -
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Redisplay the last message.
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.It Ic q
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Drop out of
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.Nm ;
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the next time
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.Nm
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will pick up where it last left off.
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.It Ic s
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Append the current message to the file ``Messages'' in the current directory;
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`s\-' will save the previously displayed message.
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A `s' or `s\-' may
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be followed by a space and a file name to receive the message replacing
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the default ``Messages''.
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.It Ic m
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A copy of the specified message is placed in a temporary
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mailbox and
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.Xr mail 1
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is invoked on that mailbox.
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.It Ic p
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The specified message is piped through
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.Ev PAGER ,
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or, if
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.Ev PAGER
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is null or not defined,
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.Xr more 1 .
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The commands `m', `p', and `s' all accept a numeric argument in place of the `\-'.
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.El
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.Pp
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.Nm
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keeps track of the next message you will see by a number in the file
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.Pa \&.msgsrc
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in your home directory.
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In the directory
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.Pa /var/msgs
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it keeps a set of files whose names are the (sequential) numbers
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of the messages they represent.
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The file
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.Pa /var/msgs/bounds
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shows the low and high number of the messages in the directory
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so that
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.Nm
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can quickly determine if there are no messages for you.
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If the contents of
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.Pa bounds
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is incorrect it can be fixed by removing it;
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.Nm
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will make a new
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.Pa bounds
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file the next time it is run.
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.Pp
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The
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.Fl s
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option is used for setting up the posting of messages.
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The line
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.Pp
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.Dl msgs: \&"\&| /usr/bin/msgs \-s\&"
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.Pp
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should be included in
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.Pa /etc/mail/aliases
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(see
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.Xr newaliases 1 )
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to enable posting of messages.
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.Pp
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The
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.Fl c
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option is used for performing cleanup on
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.Pa /var/msgs .
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An entry with the
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.Fl c
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option should be placed in
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.Pa /etc/crontab
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to run every night.
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This will remove all messages over 21 days old.
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A different expiration may be specified on the command line to override
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the default.
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.Pp
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Options when reading messages include:
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.Bl -tag -width Fl
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.It Fl f
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Do not to say ``No new messages.''.
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This is useful in a
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.Pa .login
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file since this is often the case here.
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.It Fl q
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Queries whether there are messages, printing
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``There are new messages.'' if there are.
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The command ``msgs \-q'' is often used in login scripts.
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.It Fl h
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Print the first part of messages only.
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.It Fl r
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Disables the ability to save messages or enter the mailer.
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It is
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assumed that
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.Ev PAGER
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is set to something secure.
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.It Fl l
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Option causes only locally originated messages to be reported.
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.It Ar number
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A message number can be given
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on the command line, causing
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.Nm
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to start at the specified message rather than at the next message
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indicated by your
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.Pa \&.msgsrc
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file.
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Thus
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.Pp
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.Dl msgs \-h 1
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.Pp
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prints the first part of all messages.
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.It Ar \-number
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Start
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.Ar number
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messages back from the one indicated in the
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.Pa \&.msgsrc
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file, useful for reviews of recent messages.
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.It Fl p
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Pipe long messages through
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.Ev PAGER ,
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or, if
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.Ev PAGER
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is null or not defined,
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.Xr more 1 .
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.El
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.Pp
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Within
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.Nm
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you can also go to any specific message by typing its number when
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.Nm
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requests input as to what to do.
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.Sh ENVIRONMENT
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.Nm
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uses the
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.Ev HOME
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and
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.Ev TERM
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environment variables for the default home directory and
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terminal type.
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.Sh FILES
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.Bl -tag -width /var/msgs/* -compact
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.It Pa /var/msgs/*
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database
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.It ~/.msgsrc
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number of next message to be presented
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.El
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.Sh SEE ALSO
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.Xr mail 1 ,
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.Xr more 1 ,
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.Xr aliases 5
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.\".Xr crontab 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 3.0 .
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