1.\" $NetBSD: utmpx.5,v 1.2 2003/04/16 13:35:24 wiz Exp $ 2.\" 3.\" Copyright (c) 2002 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Thomas Klausner. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd September 26, 2002 38.Dt UTMPX 5 39.Os 40.Sh NAME 41.Nm utmpx , 42.Nm wtmpx , 43.Nm lastlogx 44.Nd user accounting database 45.Sh SYNOPSIS 46.In utmpx.h 47.Sh DESCRIPTION 48The 49.Aq Pa utmpx.h 50header defines the structures and functions for logging user. 51Currently logged in users are tracked in 52.Pa /var/run/utmpx , 53a list of all logins and logouts, as well as all shutdowns, reboots 54and date changes, is kept in 55.Pa /var/log/wtmpx , 56and the last login of each user is noted in 57.Pa /var/log/lastlogx . 58The files are not automatically created if they do not exist; they 59must be created manually. 60.Pp 61The interface to the 62.Nm utmpx 63file is described in 64.Xr endutxent 3 . 65.Pp 66The 67.Nm wtmpx 68file can grow rapidly on busy systems, and is normally rotated with 69.Xr newsyslog 8 . 70.Pp 71In the event of a date change, a shutdown, or a reboot, the following 72items are logged in the 73.Nm wtmpx 74file: 75.Bl -tag -width shutdownxx -compact -offset indent 76.It Li date 77The system time has been manually or automatically updated by 78.Xr date 1 . 79The command name 80.Em date 81is recorded in the field 82.Fa ut_name . 83In the field 84.Fa ut_line , 85the character 86.Ql \\*(Ba 87indicates the time prior to the change, and the character 88.Ql \&{ 89indicates the new time. 90.It Li reboot 91.It Li shutdown 92A system reboot or shutdown has been initiated. 93The character 94.Ql \&~ 95is placed in the field 96.Fa ut_line , 97and 98.Li reboot 99or 100.Li shutdown 101in the field 102.Fa ut_name 103(see 104.Xr shutdown 8 105and 106.Xr reboot 8 ) , 107using 108.Xr logwtmpx 3 . 109.Pp 110.El 111.Sh FILES 112.Bl -tag -width /var/log/lastlogx -compact 113.It Pa /var/run/utmpx 114The 115.Nm utmpx 116file. 117.It Pa /var/log/wtmpx 118The 119.Nm wtmpx 120file. 121.It Pa /var/log/lastlogx 122The 123.Nm lastlogx 124file. 125.El 126.Sh SEE ALSO 127.Xr last 1 , 128.Xr login 1 , 129.Xr rwho 1 , 130.Xr w 1 , 131.Xr who 1 , 132.Xr endutxent 3 , 133.Xr logwtmpx 3 , 134.Xr ac 8 , 135.Xr init 8 , 136.Xr newsyslog 8 , 137.Xr reboot 8 138