151 lines
4.2 KiB
Groff
151 lines
4.2 KiB
Groff
.\"
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.\" Copyright (c) 1994 Simon J. Gerraty
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.\" Copyright (c) 1994 Christopher G. Demetriou
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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 ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd January 21, 2010
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.Dt AC 8
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.Os
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.Sh NAME
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.Nm ac
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.Nd connect time accounting
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.Sh SYNOPSIS
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.Nm
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.Op Fl dp
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.\".Op Fl c Ar console
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.Op Fl t Ar tty
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.Op Fl w Ar wtmp
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.Op Ar users ...
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.Sh DESCRIPTION
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If the file
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.Pa /var/log/utx.log
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exists, a record of individual login and logout
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times are written to it by
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.Xr login 1
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and
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.Xr init 8 ,
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respectively.
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The
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.Nm
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utility
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examines these records and writes the accumulated connect time (in hours)
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for all logins to the standard output.
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.Pp
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The options are as follows:
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.Bl -tag -width indentXXX
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.It Fl d
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Display the connect times in 24 hour chunks.
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.\" .It Fl c Ar console
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.\" Use
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.\" .Ar console
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.\" as the name of the device that local X sessions (ut_host of ":0.0")
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.\" originate from. If any login has been recorded on
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.\" .Ar console
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.\" then these X sessions are ignored unless COMPAT_SUNOS was defined at
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.\" compile time.
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.It Fl p
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Print individual users' totals.
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.It Fl t Ar tty
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Only do accounting logins on certain ttys.
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The
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.Ar tty
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specification can start with '!' to indicate not this
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.Ar tty
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and end with '*' to indicate all similarly named ttys.
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Multiple
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.Fl t
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flags may be specified.
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.It Fl w Ar wtmp
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Read connect time data from
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.Ar wtmp
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instead of the default file,
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.Pa /var/log/utx.log .
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.It Ar users ...
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Display totals for the given individuals only.
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.El
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.Pp
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If no arguments are given,
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.Nm
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displays the total connect time for all
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accounts with login sessions recorded in
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.Pa utx.log .
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.Pp
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The default
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.Pa utx.log
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file will increase without bound unless it is truncated.
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It is normally truncated by the daily scripts run
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by
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.Xr cron 8 ,
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which rename and rotate the
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.Pa utx.log
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files, keeping a week's worth of data on
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hand.
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No login or connect time accounting is performed if
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.Pa /var/log/utx.log
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does not exist.
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.Pp
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For example,
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.Bd -literal -offset indent
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ac -p -t "ttyd*" > modems
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ac -p -t "!ttyd*" > other
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.Ed
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.Pp
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allows times recorded in
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.Pa modems
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to be charged out at a different rate than
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.Pa other .
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.Sh FILES
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.Bl -tag -width /var/log/utx.log -compact
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.It Pa /var/log/utx.log
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connect time accounting file
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr login 1 ,
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.Xr getutxent 3 ,
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.Xr init 8 ,
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.Xr sa 8
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.\" .Sh NOTES
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.\" If COMPAT_SUNOS is defined
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.\" .Nm ac
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.\" ignores the fact that entries with ut_host of ":0.0" are not real
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.\" login sessions. Normally such entries are ignored except in the case
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.\" of a user being logged in when the
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.\" .Pa wtmp
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.\" file was rotated, in which case a login with ut_host of ":0.0" may
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.\" appear without any preceding console logins.
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.\" If no one is logged in on the console, the user is deemed to have
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.\" logged in on at the earliest time stamp found in
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.\" .Pa wtmp .
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.\" Use of
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.\" .Pa console
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.\" allows
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.\" .Nm ac
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.\" to identify and correctly process a logout for the user. The default
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.\" value for
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.\" .Pa console
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.\" is usually correct at compile time.
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