1.\" $NetBSD: lastlogin.8,v 1.14 2020/05/07 12:52:26 wiz Exp $ 2.\" 3.\" Copyright (c) 1996 John M. Vinopal 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 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 for the NetBSD Project 17.\" by John M. Vinopal. 18.\" 4. The name of the author may not be used to endorse or promote products 19.\" derived from this software without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.Dd May 6, 2020 34.Dt LASTLOGIN 8 35.Os 36.Sh NAME 37.Nm lastlogin 38.Nd indicate last login time of users 39.Sh SYNOPSIS 40.Nm 41.Op Fl Fnrt 42.Op Fl f Ar filename 43.Op Fl H Ar hostsize 44.Op Fl L Ar linesize 45.Op Fl N Ar namesize 46.Op user ... 47.Sh DESCRIPTION 48.Nm 49will list the last login session of specified 50.Ar users , 51or for all users by default. 52Each line of output contains the user name, the tty from which the 53session was conducted, any hostname, and the start time for the 54session. 55.Pp 56If multiple 57.Ar users 58are given, the session information for each user is printed in 59the order given on the command line. 60Otherwise, information for all users is printed, sorted by uid. 61.Pp 62.Nm 63differs from 64.Xr last 1 65in that it only prints information regarding the very last login session. 66The last login database is never turned over or deleted in standard usage. 67.Pp 68The following options are available: 69.Bl -tag -width indent 70.It Fl F 71Use fixed widths for all output fields. 72.It Fl f Ar filename 73Process input from 74.Ar filename . 75If the file ends with an 76.Dq x , 77then it is assumed that it is a 78.Xr lastlogx 5 79file, else it is assumed to be a 80.Xr lastlog 5 81file. 82.It Fl H Ar hostlen 83Set the field width for host output to 84.Ar hostlen 85characters. 86.It Fl L Ar linelen 87Set the field width for line output to 88.Ar linelen 89characters. 90.It Fl N Ar namelen 91Set the field width for name output to 92.Ar namelen 93characters. 94.It Fl n 95Attempt to print numeric host addresses. 96This option is only supported with 97.Xr lastlogx 5 98format files. 99.It Fl r 100Reverse the order of the sort. 101.It Fl t 102Sort by last login time (most recent first.) 103.El 104.Sh FILES 105.Bl -tag -width /var/log/lastlogx -compact 106.It Pa /var/log/lastlogx 107default last login database 108.It Pa /var/log/lastlog 109compatibility last login database 110.El 111.Sh EXAMPLES 112.Nm 113looks by default to the 114.Pa /var/log/lastlogx 115database, where some old programs that are not 116.Xr utmpx 5 117aware might only write to 118.Pa /var/log/lastlog . 119To look at the old database one can use: 120.Pp 121.Dl lastlogin -f /var/log/lastlog 122.Sh SEE ALSO 123.Xr last 1 , 124.Xr lastlog 5 , 125.Xr lastlogx 5 , 126.Xr ac 8 127.Sh AUTHORS 128.An John M. Vinopal 129wrote this program in January 1996 and contributed it to the 130.Nx 131project. 132