While implementing a tool to import lastlog entries into utmpx, I noticed lastlogin doesn't allow custom database files to be opened. Add a -f switch to support this. Also, add -r and -t similar to ls(1), ruptime(1), etc. where you can sort entries by timestamp and reverse them. This allows you to spot active/idle users more easily.
95 lines
3.1 KiB
Groff
95 lines
3.1 KiB
Groff
.\" $FreeBSD$
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.\" $NetBSD: lastlogin.8,v 1.3 1998/02/06 06:20:39 perry Exp $
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.\"
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.\" Copyright (c) 1996 John M. Vinopal
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed for the NetBSD Project
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.\" by John M. Vinopal.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd June 6, 2011
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.Dt LASTLOGIN 8
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.Os
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.Sh NAME
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.Nm lastlogin
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.Nd indicate last login time of users
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.Sh SYNOPSIS
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.Nm
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.Op Fl f Ar file
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.Op Fl rt
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.Op Ar user ...
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.Sh DESCRIPTION
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The
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.Nm
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utility will list the last login session of each specified
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.Ar user ,
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or for all users by default.
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Each line of output contains
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the user name, the tty from which the session was conducted, any
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hostname, and the start time for the session.
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.Pp
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If more than one
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.Ar user
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is given, the session information for each user is printed in
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the order given on the command line.
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Otherwise, information for all users is printed.
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By default, the entries are sorted by user name.
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.Pp
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The
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.Nm
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utility differs from
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.Xr last 1
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in that it only prints information regarding the very last login session.
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The last login database is never turned over or deleted in standard usage.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl f Ar file
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Open last login database
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.Ar file
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instead of the system-wide database.
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.It Fl r
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Print the entries in reverse sorted order.
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.It Fl t
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Sort the elements by last login time, instead of user name.
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.El
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.Sh FILES
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.Bl -tag -width /var/log/utx.lastlogin -compact
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.It Pa /var/log/utx.lastlogin
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last login database
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.El
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.Sh SEE ALSO
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.Xr last 1 ,
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.Xr getutxent 3 ,
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.Xr ac 8
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.Sh AUTHORS
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.An John M. Vinopal
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wrote this program in January 1996 and contributed it
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to the
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.Nx
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project.
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