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authorrgrimes <rgrimes@FreeBSD.org>1994-05-26 05:23:31 +0000
committerrgrimes <rgrimes@FreeBSD.org>1994-05-26 05:23:31 +0000
commit862fdf11a2ede45dec0da01ed575525d79468981 (patch)
tree7a1c88ccb8006476bd4b4a548a6ad48fbfc33a01 /usr.sbin/ac
parent8e1a19ddde0df113b0b26b0ea621afd61dbaf91f (diff)
downloadFreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.zip
FreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.tar.gz
BSD 4.4 Lite usr.sbin Sources
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+.\" 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.
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