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+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)timedc.8	6.7 (Berkeley) 5/11/93
+.\"
+.Dd May 11, 1993
+.Dt TIMEDC 8
+.Os BSD 4.3
+.ad
+.Sh NAME
+.Nm timedc
+.Nd timed control program
+.Sh SYNOPSIS
+.Nm timedc
+.Oo Ar command\ \&
+.Op Ar argument ...
+.Oc
+.Sh DESCRIPTION
+.Nm Timedc
+is used to control the operation of the
+.Xr timed 8
+program.
+It may be used to:
+.Bl -bullet
+.It
+Measure the differences between machines' clocks,
+.It 
+Find the location where the master time server is running,
+.It
+Enable or disable tracing of messages received by
+.Xr timed ,
+and
+.It
+Perform various debugging actions.
+.El
+.Pp
+Without any arguments,
+.Nm timedc
+will prompt for commands from the standard input.
+If arguments are supplied,
+.Nm timedc
+interprets the first argument as a command and the remaining
+arguments as parameters to the command.  The standard input
+may be redirected causing
+.Nm timedc
+to read commands from a file.
+Commands may be abbreviated;
+recognized commands are:
+.Pp
+.Bl -tag -width Ds -compact
+.It Ic \&? Op Ar command ...
+.Pp
+.It Ic help Op Ar command ...
+Print a short description of each command specified in the argument list,
+or, if no arguments are given, a list of the recognized commands.
+.Pp
+.It Ic clockdiff Ar host ...
+Compute the differences between the clock of the host machine
+and the clocks of the machines given as arguments.
+.Pp
+.It Ic msite Op Ar host ...
+Show the master time server for specified host(s).
+.Pp
+.It Xo
+.Ic trace
+.Li \&{ Ar on Li \&|
+.Ar off \&}
+.Xc
+Enable or disable the tracing of incoming messages to
+.Xr timed
+in the file
+.Pa /var/log/timed.log.
+.Pp
+.It Ic election Ar host
+Asks the daemon
+on the target host to reset its
+.Dq election
+timers and to ensure that a time master has been elected.
+.Pp
+.It Ic quit
+Exit from timedc.
+.El
+.Pp
+Other commands may be included for use in testing and debugging
+.Xr timed ;
+the help command and
+the program source may be consulted for details.
+.Sh FILES
+.Bl -tag -width /var/log/timed.masterlog -compact
+.It Pa /var/log/timed.log
+tracing file for timed
+.It Pa /var/log/timed.masterlog
+log file for master timed
+.El
+.Sh SEE ALSO
+.Xr date 1 ,
+.Xr adjtime 2 ,
+.Xr icmp 4 ,
+.Xr timed 8
+.Rs
+.%T "TSP: The Time Synchronization Protocol for UNIX 4.3BSD"
+.%A R. Gusella
+.%A S. Zatti
+.Re
+.Sh DIAGNOSTICS
+.Bl -tag -width Ds -compact
+.It ?Ambiguous command
+abbreviation matches more than one command
+.It ?Invalid command
+no match found
+.It ?Privileged command
+command can be executed by root only
+.El
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.3 .