1.\" Copyright (c) 1980, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" From: @(#)lastcomm.1 8.1 (Berkeley) 6/6/93 33.\" $FreeBSD: src/usr.bin/lastcomm/lastcomm.1,v 1.7.2.4 2002/06/21 15:27:39 charnier Exp $ 34.\" $DragonFly: src/usr.bin/lastcomm/lastcomm.1,v 1.3 2008/05/02 02:05:07 swildner Exp $ 35.\" 36.Dd September 18, 1996 37.Dt LASTCOMM 1 38.Os 39.Sh NAME 40.Nm lastcomm 41.Nd show last commands executed in reverse order 42.Sh SYNOPSIS 43.Nm 44.Op Fl EScesu 45.Op Fl f Ar file 46.Op Ar command ...\& 47.Op Ar user ...\& 48.Op Ar terminal ...\& 49.Sh DESCRIPTION 50The 51.Nm 52utility gives information on previously executed commands. 53With no arguments, 54.Nm 55prints information about all the commands recorded 56during the current accounting file's lifetime. 57.Pp 58The following options are available: 59.Pp 60.Bl -tag -width XXfXfileX -compact 61.It Fl E 62Print the time the process exited. 63.It Fl S 64Print the time the process started. 65.It Fl c 66Print the amount of cpu time used by the process. 67.It Fl e 68Print the amount of elapsed time used by the process. 69.It Fl s 70Print the amount of system time used by the process. 71.It Fl u 72Print the amount of user time used by the process. 73.It Fl f Ar file 74Read from 75.Ar file 76rather than the default 77.Pa /var/account/acct . 78.El 79.Pp 80If no options are specified, 81.Fl cS 82is assumed. 83If 84.Nm 85is invoked with arguments, only accounting entries with a 86matching 87.Ar command 88name, 89.Ar user 90name, 91or 92.Ar terminal 93name 94are printed. 95For example: 96.Pp 97.Dl lastcomm a.out root ttyd0 98.Pp 99would produce a listing of all the 100executions of commands named 101.Pa a.out 102by user 103.Ar root 104on the terminal 105.Ar ttyd0 . 106.Pp 107For each process entry, the following are printed. 108.Pp 109.Bl -bullet -offset indent -compact 110.It 111The name of the user who ran the process. 112.It 113Flags, as accumulated by the accounting facilities in the system. 114.It 115The command name under which the process was called. 116.It 117The amount of 118CPU 119.Pq Fl c , 120wall 121.Pq Fl e , 122system 123.Pq Fl s , 124or user 125.Pq Fl u 126time used by the process (in seconds). 127.It 128The time the process started 129.Pq Fl S 130or exited 131.Pq Fl E . 132.El 133.Pp 134The flags are encoded as follows: ``S'' indicates the command was 135executed by the super-user, ``F'' indicates the command ran after 136a fork, but without a following 137.Xr exec 3 , 138.\" ``C'' indicates the command was run in PDP-11 compatibility mode 139.\" (VAX only), 140``D'' indicates the command terminated with the generation of a 141.Pa core 142file, and ``X'' indicates the command was terminated with a signal. 143.Sh FILES 144.Bl -tag -width /var/account/acct -compact 145.It Pa /var/account/acct 146Default accounting file. 147.El 148.Sh SEE ALSO 149.Xr last 1 , 150.Xr sigvec 2 , 151.Xr acct 5 , 152.Xr core 5 153.Sh HISTORY 154The 155.Nm 156command appeared in 157.Bx 3.0 . 158