.\" Copyright (c) 1980, 1990, 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. .\" .\" @(#)last.1 8.1 (Berkeley) 6/6/93 .\" .Dd June 6, 1993 .Dt LAST 1 .Os BSD 4 .Sh NAME .Nm last .Nd indicate last logins of users and ttys .Sh SYNOPSIS .Nm last .Op Fl Ns Ar n .Op Fl f Ar file .Op Fl h Ar host .Op Fl t Ar tty .Op user ... .Sh DESCRIPTION .Nm Last will list the sessions of specified .Ar users , .Ar ttys , and .Ar hosts , in reverse time order. Each line of output contains the user name, the tty from which the session was conducted, any hostname, the start and stop times for the session, and the duration of the session. If the session is still continuing or was cut short by a crash or shutdown, .Nm last will so indicate. .Pp .Bl -tag -width indent-two .It Fl f Ar file .Nm Last reads the file .Ar file instead of the default, .Pa /var/log/wtmp . .It Fl Ar n Limits the report to .Ar n lines. .It Fl t Ar tty Specify the .Ar tty . Tty names may be given fully or abbreviated, for example, .Dq Li "last -t 03" is equivalent to .Dq Li "last -t tty03" . .It Fl h Ar host .Ar Host names may be names or internet numbers. .El .Pp If multiple arguments are given, the information which applies to any of the arguments is printed, e.g., .Dq Li "last root -t console" would list all of .Dq Li root Ns 's sessions as well as all sessions on the console terminal. If no users, hostnames or terminals are specified, .Nm last prints a record of all logins and logouts. .Pp The pseudo-user .Ar reboot logs in at reboots of the system, thus .Dq Li last reboot will give an indication of mean time between reboot. .Pp If .Nm last is interrupted, it indicates to what date the search has progressed. If interrupted with a quit signal .Nm last indicates how far the search has progressed and then continues. .Sh FILES .Bl -tag -width /var/log/wtmp -compact .It Pa /var/log/wtmp login data base .El .Sh SEE ALSO .Xr lastcomm 1 , .Xr utmp 5 , .Xr ac 8 .Sh HISTORY .Nm Last appeared in .Bx 3.0 .