1.\" $OpenBSD: rc.shutdown.8,v 1.8 2007/05/31 19:19:59 jmc Exp $ 2.\" 3.\" Copyright (c) 1999 Aaron Campbell 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 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.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd $Mdocdate: May 31 2007 $ 28.Dt RC.SHUTDOWN 8 29.Os 30.Sh NAME 31.Nm rc.shutdown 32.Nd command script run at system shutdown 33.Sh DESCRIPTION 34When the system is administratively shut down using either the 35.Xr reboot 8 36or 37.Xr halt 8 38command, 39.Xr rc 8 40is invoked with the argument 41.Dq shutdown , 42which checks for the existence of a 43.Pa /etc/rc.shutdown 44script to run before halting the system. 45This script, like 46.Xr rc.local 8 , 47is entirely for commands added by the system administrator. 48.Pp 49The 50.Nm 51script is also executed by 52.Xr init 8 53if a keyboard-requested halt is issued (for architectures that support this). 54.Pp 55If 56.Nm 57sets the variable 58.Va powerdown 59to 60.Dq YES , 61.Xr halt 8 62will attempt to power down the machine after it has halted. 63.Sh SEE ALSO 64.Xr halt 8 , 65.Xr init 8 , 66.Xr rc 8 , 67.Xr reboot 8 68