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Annotation of 43BSDTahoe/man/man5/utmp.5, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)utmp.5      6.3 (Berkeley) 12/9/86
        !             6: .\"
        !             7: .TH UTMP 5  "December 9, 1986"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: utmp, wtmp \- login records
        !            11: .SH SYNOPSIS
        !            12: .B #include <utmp.h>
        !            13: .SH DESCRIPTION
        !            14: The
        !            15: .I utmp
        !            16: file records information about who is currently using the system.
        !            17: The file is a sequence of entries with the following
        !            18: structure declared in the include file:
        !            19: .RS
        !            20: .PP
        !            21: .nf
        !            22: .so /usr/include/utmp.h
        !            23: .fi
        !            24: .RE
        !            25: .PP
        !            26: This structure gives the name of the special file
        !            27: associated with the user's terminal, the user's login name,
        !            28: and the time of the login in the form of
        !            29: .IR time (3C).
        !            30: .PP
        !            31: The
        !            32: .I wtmp
        !            33: file records all logins and logouts.
        !            34: A null user name indicates a logout on the associated terminal.
        !            35: Furthermore, the terminal name `~' indicates that the
        !            36: system was rebooted at the indicated time;
        !            37: the adjacent pair of entries with terminal names
        !            38: `\^|\^' and `{' indicate the system-maintained time just before and just after a
        !            39: .I date
        !            40: command has changed the system's idea of the time.
        !            41: .PP
        !            42: .I Wtmp
        !            43: is maintained by
        !            44: .IR login (1)
        !            45: and
        !            46: .IR init (8).
        !            47: Neither of these programs creates the file,
        !            48: so if it is removed record-keeping is turned off.  It is summarized by
        !            49: .IR ac (8).
        !            50: .SH FILES
        !            51: /etc/utmp
        !            52: .br
        !            53: /usr/adm/wtmp
        !            54: .SH "SEE ALSO"
        !            55: last(1), login(1), who(1), ac(8), init(8)

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