1.\" $NetBSD: rdate.8,v 1.9 2002/01/19 11:45:00 wiz Exp $ 2.\" 3.\" Copyright (c) 1994 Christos Zoulas 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.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by Christos Zoulas. 17.\" 4. The name of the author may not be used to endorse or promote products 18.\" derived from this software without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30.\" 31.Dd April 30, 1994 32.Dt RDATE 8 33.Os 34.Sh NAME 35.Nm rdate 36.Nd set the system's date from a remote host 37.Sh SYNOPSIS 38.Nm 39.Op Fl psa 40.Ar host 41.Sh DESCRIPTION 42.Nm 43displays and sets the local date and time from the 44host name or address given as the argument. It uses the RFC868 45protocol which is usually implemented as a built-in service of 46.Xr inetd 8 . 47.Pp 48Available options: 49.Pp 50.Bl -tag -width indent 51.It Fl p 52Do not set, just print the remote time 53.It Fl s 54Do not print the time. 55.It Fl a 56Use the 57.Xr adjtime 2 58call to gradually skew the local time to the 59remote time rather than just hopping. 60.El 61.Sh FILES 62.Bl -tag -width /var/log/wtmp -compact 63.It Pa /var/log/wtmp 64A record of date resets and time changes. 65.El 66.Sh SEE ALSO 67.Xr adjtime 2 , 68.Xr gettimeofday 2 , 69.Xr utmp 5 , 70.Xr inetd 8 71