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.
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.
79 specification can start with '!' to indicate not this
81 and end with '*' to indicate all similarly named ttys.
84 flags may be specified.
86 Read connect time data from
88 instead of the default file,
91 Display totals for the given individuals only.
94 If no arguments are given,
96 displays the total connect time for all
97 accounts with login sessions recorded in
102 file will increase without bound unless it is truncated.
103 It is normally truncated by the daily scripts run
106 which rename and rotate the
108 files, keeping a week's worth of data on
110 No login or connect time accounting is performed if
116 ac -p -t "ttyd*" > modems
117 ac -p -t "!ttyd*" > other
120 allows times recorded in
122 to be charged out at a different rate than
125 .Bl -tag -width /var/log/wtmp -compact
127 connect time accounting file
137 .\" If COMPAT_SUNOS is defined
139 .\" ignores the fact that entries with ut_host of ":0.0" are not real
140 .\" login sessions. Normally such entries are ignored except in the case
141 .\" of a user being logged in when the
143 .\" file was rotated, in which case a login with ut_host of ":0.0" may
144 .\" appear without any preceding console logins.
145 .\" If no one is logged in on the console, the user is deemed to have
146 .\" logged in on at the earliest time stamp found in
152 .\" to identify and correctly process a logout for the user. The default
155 .\" is usually correct at compile time.