107 lines
3.2 KiB
Groff
107 lines
3.2 KiB
Groff
.\" Copyright (c) 2011-2012 Ed Schouten <ed@FreeBSD.org>
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.\" 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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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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.\" $FreeBSD$
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.\"
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.Dd February 11, 2012
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.Dt UTX 8
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.Os
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.Sh NAME
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.Nm utx ,
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.Nm utxrm
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.Nd manage the user accounting database
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.Sh SYNOPSIS
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.Nm
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.Cm boot
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.Nm
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.Cm shutdown
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.Nm
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.Cm rm
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.Ar identifier
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.Ar ...
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.Nm utxrm
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.Ar identifier
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.Ar ...
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.Sh DESCRIPTION
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The
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.Nm
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utility can be used to perform operations on the user accounting
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database, as done by
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.Xr pututxline 3 .
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.Pp
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The first argument to
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.Nm
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indicates an action to be performed:
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.Bl -tag -width ".Cm shutdown"
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.It Cm boot
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Write a boot time record to the user accounting database.
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This option should typically only be used by
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.Xr rc 8 .
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.It Cm shutdown
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Write a shutdown time record to the user accounting database.
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This option should typically only be used by
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.Xr rc 8 .
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.It Cm rm
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Remove stale sessions from the user accounting
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database, by referring to their
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.Ar identifier .
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Stale sessions can occur if a login service exits prematurely or fails
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to remove the session from the accounting database.
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.Pp
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Utilities such as
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.Xr w 1
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will not display the identifier corresponding with a login session,
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since its value is typically only of use by the process managing the
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record.
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The following command can be used to obtain all records from the user
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accounting database's active session table, including its identifiers:
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.Pp
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.Dl getent utmpx active
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.Pp
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Identifiers can either be supplied in hexadecimal form as displayed by
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.Xr getent 1 ,
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or as a string if the identifier allows such a representation.
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.Pp
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To remain backward compatible, this action can also be invoked directly
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by using the
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.Nm utxrm
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command.
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.El
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.Pp
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Because this utility requires write-access to the user accounting
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database, its use is limited to the super-user.
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.Sh SEE ALSO
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.Xr getent 1 ,
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.Xr w 1 ,
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.Xr pututxline 3
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.Sh HISTORY
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The
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.Nm
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utility replaced
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.Nm utxrm
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in
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.Fx 10.0 .
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.Sh AUTHORS
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.An Ed Schouten Aq ed@FreeBSD.org
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