1.\" 2.\" Copyright (c) 1994 Simon J. Gerraty 3.\" Copyright (c) 1994 Christopher G. Demetriou 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.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.Dd February 14, 2020 27.Dt AC 8 28.Os 29.Sh NAME 30.Nm ac 31.Nd connect time accounting 32.Sh SYNOPSIS 33.Nm 34.Op Fl dp 35.\".Op Fl c Ar console 36.Op Fl t Ar tty 37.Op Fl w Ar wtmp 38.Op Ar users ... 39.Sh DESCRIPTION 40If the file 41.Pa /var/log/utx.log 42exists, a record of individual login and logout 43times are written to it by 44.Xr login 1 45and 46.Xr init 8 , 47respectively. 48The 49.Nm 50utility 51examines these records and writes the accumulated connect time (in hours) 52for all logins to the standard output. 53.Pp 54The options are as follows: 55.Bl -tag -width indentXXX 56.It Fl d 57Display the connect times in 24 hour chunks. 58.\" .It Fl c Ar console 59.\" Use 60.\" .Ar console 61.\" as the name of the device that local X sessions (ut_host of ":0.0") 62.\" originate from. If any login has been recorded on 63.\" .Ar console 64.\" then these X sessions are ignored unless COMPAT_SUNOS was defined at 65.\" compile time. 66.It Fl p 67Print individual users' totals. 68.It Fl t Ar tty 69Only do accounting logins on certain ttys. 70The 71.Ar tty 72specification can start with '!' to indicate not this 73.Ar tty 74and end with '*' to indicate all similarly named ttys. 75Multiple 76.Fl t 77flags may be specified. 78.It Fl w Ar wtmp 79Read connect time data from 80.Ar wtmp 81instead of the default file, 82.Pa /var/log/utx.log . 83.It Ar users ... 84Display totals for the given individuals only. 85.El 86.Pp 87If no arguments are given, 88.Nm 89displays the total connect time for all 90accounts with login sessions recorded in 91.Pa utx.log . 92.Pp 93The default 94.Pa utx.log 95file will increase without bound unless it is truncated. 96It is normally truncated by the daily scripts run 97by 98.Xr cron 8 , 99which rename and rotate the 100.Pa utx.log 101files, keeping a week's worth of data on 102hand. 103No login or connect time accounting is performed if 104.Pa /var/log/utx.log 105does not exist. 106.Sh FILES 107.Bl -tag -width /var/log/utx.log -compact 108.It Pa /var/log/utx.log 109connect time accounting file 110.El 111.Sh EXIT STATUS 112.Ex -std 113.Sh EXAMPLES 114Allow times recorded in 115.Pa modems 116to be charged out at a different rate than 117.Pa other : 118.Bd -literal -offset indent 119ac -p -t "ttyd*" > modems 120ac -p -t "!ttyd*" > other 121.Ed 122.Sh SEE ALSO 123.Xr login 1 , 124.Xr getutxent 3 , 125.Xr init 8 , 126.Xr sa 8 127.Sh HISTORY 128An 129.Nm 130command appeared in 131.At v5 . 132This version of 133.Nm 134was written for 135.Nx 0.9a 136from the specification provided by various systems' manual pages. 137.\" .Sh NOTES 138.\" If COMPAT_SUNOS is defined 139.\" .Nm ac 140.\" ignores the fact that entries with ut_host of ":0.0" are not real 141.\" login sessions. Normally such entries are ignored except in the case 142.\" of a user being logged in when the 143.\" .Pa wtmp 144.\" file was rotated, in which case a login with ut_host of ":0.0" may 145.\" appear without any preceding console logins. 146.\" If no one is logged in on the console, the user is deemed to have 147.\" logged in on at the earliest time stamp found in 148.\" .Pa wtmp . 149.\" Use of 150.\" .Pa console 151.\" allows 152.\" .Nm ac 153.\" to identify and correctly process a logout for the user. The default 154.\" value for 155.\" .Pa console 156.\" is usually correct at compile time. 157