2 .\" Copyright (c) 1994 Simon J. Gerraty
3 .\" Copyright (c) 1994 Christopher G. Demetriou
4 .\" All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
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 .\" 3. All advertising materials mentioning features or use of this software
15 .\" must display the following acknowledgement:
16 .\" This product includes software developed by Christopher G. Demetriou.
17 .\" 3. The name of the author may not be used to endorse or promote products
18 .\" derived from this software without specific prior written permission
20 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 .\" $FreeBSD: src/usr.sbin/ac/ac.8,v 1.13.2.5 2003/03/11 21:13:47 trhodes Exp $
38 .Nd connect time accounting
42 .\".Op Fl c Ar console
49 exists, a record of individual login and logout
50 times are written to it by
58 examines these records and writes the accumulated connect time (in hours)
59 for all logins to the standard output.
61 The options are as follows:
62 .Bl -tag -width indentXXX
64 Display the connect times in 24 hour chunks.
65 .\" .It Fl c Ar console
68 .\" as the name of the device that local X sessions (ut_host of ":0.0")
69 .\" originate from. If any login has been recorded on
71 .\" then these X sessions are ignored unless COMPAT_SUNOS was defined at
74 Print individual users' totals.
76 Only do accounting logins on certain ttys. The
78 specification can start with '!' to indicate not this
80 and end with '*' to indicate all similarly named ttys.
83 flags may be specified.
85 Read connect time data from
87 instead of the default file,
90 Display totals for the given individuals only.
93 If no arguments are given,
95 displays the total connect time for all
96 accounts with login sessions recorded in
101 file will increase without bound unless it is truncated.
102 It is normally truncated by the daily scripts run
105 which rename and rotate the
107 files, keeping a week's worth of data on
108 hand. No login or connect time accounting is performed if
114 ac -p -t "ttyd*" > modems
115 ac -p -t "!ttyd*" > other
118 allows times recorded in
120 to be charged out at a different rate than
123 .Bl -tag -width /var/log/wtmp -compact
125 connect time accounting file
135 .\" If COMPAT_SUNOS is defined
137 .\" ignores the fact that entries with ut_host of ":0.0" are not real
138 .\" login sessions. Normally such entries are ignored except in the case
139 .\" of a user being logged in when the
141 .\" file was rotated, in which case a login with ut_host of ":0.0" may
142 .\" appear without any preceding console logins.
143 .\" If no one is logged in on the console, the user is deemed to have
144 .\" logged in on at the earliest time stamp found in
150 .\" to identify and correctly process a logout for the user. The default
153 .\" is usually correct at compile time.