NetBSD/usr.bin/last/last.1
agc 89aaa1bb64 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22365, verified by myself.
2003-08-07 11:13:06 +00:00

144 lines
4.1 KiB
Groff

.\" $NetBSD: last.1,v 1.12 2003/08/07 11:14:17 agc Exp $
.\"
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.\" notice, this list of conditions and the following disclaimer in the
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.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
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.\" @(#)last.1 8.1 (Berkeley) 6/6/93
.\"
.Dd February 17, 2003
.Dt LAST 1
.Os
.Sh NAME
.Nm last
.Nd indicate last logins of users and ttys
.Sh SYNOPSIS
.Nm
.Op Fl Ns Ar n
.Op Fl T
.Op Fl f Ar file
.Op Fl H Ar hostsize
.Op Fl h Ar host
.Op Fl L Ar linesize
.Op Fl N Ar namesize
.Op Fl t Ar tty
.Op user ...
.Sh DESCRIPTION
.Nm
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
will so indicate.
.Pp
.Bl -tag -width xHxhostsizexx
.It Fl Ar n
Limits the report to
.Ar n
lines.
.It Fl f Ar file
.Nm
reads the file
.Ar file
instead of the default,
.Pa /var/log/wtmpx
or
.Pa /var/log/wtmp .
If the file ends with
.Sq x ,
it is treated as a
.Xr utmpx 5
format file, else it is treated as a
.Xr utmp 5
format file.
.It Fl H Ar hostsize
Use the provided hostsize as the width to format the host name field.
.It Fl h Ar host
.Ar Host
names may be names or internet numbers.
.It Fl L Ar linesize
Use the provided linesize as the width to format the tty field.
.It Fl N Ar namesize
Use the provided namesize as the width to format the login name field.
.It Fl T
Display better time information, including the year and seconds.
.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" .
.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
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
is interrupted, it indicates to what date the search has progressed.
If interrupted with a quit signal
.Nm
indicates how far the search has progressed and then continues.
.Sh FILES
.Bl -tag -width /var/log/wtmpx -compact
.It Pa /var/log/wtmp
login data base
.It Pa /var/log/wtmpx
login data base
.El
.Sh SEE ALSO
.Xr lastcomm 1 ,
.Xr utmp 5 ,
.Xr utmpx 5 ,
.Xr ac 8
.Sh HISTORY
.Nm
appeared in
.Bx 3.0 .