[apple/system_cmds.git] / ac.tproj / ac.8

.\" Copyright (c) 1980, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"     @(#)ac.8	8.2 (Berkeley) 4/19/94
.\"
.Dd April 19, 1994
.Dt AC 8
.Os BSD 4
.Sh NAME
.Nm ac
.Nd display connect time accounting
.Sh SYNOPSIS
.Nm ac
.Op Fl d
.Op Fl p
.Op Fl w Ar file
.Op Ar users ...
.Sh DESCRIPTION
If the file
.Pa /var/log/wtmp
exists,
a record of individual
login and logout times are written to it by
.Xr init 8
and
.Xr login 8
respectively.
The program
.Nm ac
examines these
records and writes the accumulated connect time for all logins to the
standard output.
.Pp
Options available:
.Bl -tag -width people
.It Fl d
Display the connect times in 24 hour chunks.
.It Fl p
Display individual user totals.
.It Fl w Ar file
Read raw connect time data from
.Ar file
instead of the default file
.Pa /var/log/wtmp .
.It Ar users ...
Display totals for the given individuals
only.
.El
.Pp
If no arguments are given,
.Nm
displays the total amount of login time for all active accounts on the
system.
.Pp
The default
.Pa wtmp
file is an infinitely increasing file
unless frequently truncated.  This is normally
done by the daily daemon scripts scheduled by
.Xr cron 8
which rename and rotate the
.Pa wtmp
files before truncating them (and keeping about a weeks worth on hand).
No login times are collected however, if the file does not exist.
.Sh FILES
.Bl -tag -width /var/log/wtmp.[0-7] -compact
.It Pa /var/log/wtmp
.It Pa /var/log/wtmp.[0-7]
rotated files
.El
.Sh SEE ALSO
.Xr init 8 ,
.Xr sa 8 ,
.Xr login 1 ,
.Xr utmp 5 .
.Sh HISTORY
A
.Nm
command appeared in Version 6 AT&T UNIX.
Commit	Line	Data
1815bff5 A	1	.\" Copyright (c) 1980, 1991, 1993
	2	.\" The Regents of the University of California. All rights reserved.
	3	.\"
	4	.\" Redistribution and use in source and binary forms, with or without
	5	.\" modification, are permitted provided that the following conditions
	6	.\" are met:
	7	.\" 1. Redistributions of source code must retain the above copyright
	8	.\" notice, this list of conditions and the following disclaimer.
	9	.\" 2. Redistributions in binary form must reproduce the above copyright
	10	.\" notice, this list of conditions and the following disclaimer in the
	11	.\" documentation and/or other materials provided with the distribution.
	12	.\" 3. All advertising materials mentioning features or use of this software
	13	.\" must display the following acknowledgement:
	14	.\" This product includes software developed by the University of
	15	.\" California, Berkeley and its contributors.
	16	.\" 4. Neither the name of the University nor the names of its contributors
	17	.\" may be used to endorse or promote products derived from this software
	18	.\" without specific prior written permission.
	19	.\"
	20	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	21	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	24	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	.\" SUCH DAMAGE.
	31	.\"
	32	.\" @(#)ac.8 8.2 (Berkeley) 4/19/94
	33	.\"
	34	.Dd April 19, 1994
	35	.Dt AC 8
	36	.Os BSD 4
	37	.Sh NAME
	38	.Nm ac
	39	.Nd display connect time accounting
	40	.Sh SYNOPSIS
	41	.Nm ac
	42	.Op Fl d
	43	.Op Fl p
	44	.Op Fl w Ar file
	45	.Op Ar users ...
	46	.Sh DESCRIPTION
	47	If the file
	48	.Pa /var/log/wtmp
	49	exists,
	50	a record of individual
	51	login and logout times are written to it by
	52	.Xr init 8
	53	and
	54	.Xr login 8
	55	respectively.
	56	The program
	57	.Nm ac
	58	examines these
	59	records and writes the accumulated connect time for all logins to the
	60	standard output.
	61	.Pp
	62	Options available:
	63	.Bl -tag -width people
	64	.It Fl d
65	Display the connect times in 24 hour chunks.
66	.It Fl p
67	Display individual user totals.
68	.It Fl w Ar file
69	Read raw connect time data from
70	.Ar file
71	instead of the default file
72	.Pa /var/log/wtmp .
73	.It Ar users ...
74	Display totals for the given individuals
75	only.
76	.El
77	.Pp
78	If no arguments are given,
79	.Nm
80	displays the total amount of login time for all active accounts on the
81	system.
82	.Pp
83	The default
84	.Pa wtmp
85	file is an infinitely increasing file
86	unless frequently truncated. This is normally
87	done by the daily daemon scripts scheduled by
88	.Xr cron 8
89	which rename and rotate the
90	.Pa wtmp
91	files before truncating them (and keeping about a weeks worth on hand).
92	No login times are collected however, if the file does not exist.
93	.Sh FILES
94	.Bl -tag -width /var/log/wtmp.[0-7] -compact
95	.It Pa /var/log/wtmp
96	.It Pa /var/log/wtmp.[0-7]
97	rotated files
98	.El
99	.Sh SEE ALSO
100	.Xr init 8 ,
101	.Xr sa 8 ,
102	.Xr login 1 ,
103	.Xr utmp 5 .
104	.Sh HISTORY
105	A
106	.Nm
107	command appeared in Version 6 AT&T UNIX.