117 lines
3.3 KiB
Groff
117 lines
3.3 KiB
Groff
.\" $NetBSD: leave.1,v 1.12 2012/02/21 15:01:51 njoly 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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.\" @(#)leave.1 8.3 (Berkeley) 4/28/95
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.\"
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.Dd January 19, 2002
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.Dt LEAVE 1
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.Os
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.Sh NAME
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.Nm leave
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.Nd remind you when you have to leave
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.Sh SYNOPSIS
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.Nm
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.Sm off
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.Oo
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.Op Cm \&+
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.Ns Ar hhmm
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.Oc
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.Sm on
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.Sh DESCRIPTION
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.Nm
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waits until the specified time (within the next 12 hours), then
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reminds you that you have to leave by writing to the TTY that you
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executed
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.Nm
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on.
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.Pp
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You are reminded 5 minutes and 1 minute before the actual
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time, at the time, and every minute thereafter.
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When you log off,
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.Nm
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exits just before it would have
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printed the next message.
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.Sh OPTIONS
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.Bl -tag -width flag
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.It Ar hhmm
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The time of day is in the form
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.Ar hhmm
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where
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.Ar hh
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is a time in
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hours (on a 12 or 24 hour clock), and
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.Ar mm
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are minutes.
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.Pp
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However, all times are converted to a 12 hour clock, and assumed to
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be in the next 12 hours.
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An attempt to set an alarm for farther into the future will be truncated
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to within the next 12 hours.
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.It Cm \&+
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If the time is preceded by
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.Ql Cm \&+ ,
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the alarm will go off in hours and minutes
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from the current time.
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.El
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.Pp
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If no argument is given,
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.Nm
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prompts with "When do you have to leave?".
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A reply of newline causes
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.Nm
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to exit,
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otherwise the reply is assumed to be a time.
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This form is suitable for inclusion in a
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.Pa ~/.login
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or
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.Pa ~/.profile .
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.Sh SEE ALSO
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.Xr calendar 1 ,
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.Xr csh 1 ,
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.Xr sh 1
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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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.Sh BUGS
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In the modern age with
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.Xr X 7
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and window multiplexing programs like
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.Xr tmux 1
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and
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.Xr screen 1 ,
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the
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.Nm
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command's reminders and admonitions might not be seen if the user
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has the window where
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.Nm
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was started minimized or obscured.
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.Pp
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This all begs for a more general user notifications system to be implemented.
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