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.\" $Id: lastcomm.1,v 1.5 1997/02/22 19:55:32 peter Exp $ 34.\" 35.Dd September 18, 1996 36.Dt LASTCOMM 1 37.Os BSD 3 38.Sh NAME 39.Nm lastcomm 40.Nd show last commands executed in reverse order 41.Sh SYNOPSIS 42.Nm 43.Op Fl EScesu 44.Op Fl f Ar file 45.Op Ar command ... 46.Op Ar user ... 47.Op Ar terminal ... 48.Sh DESCRIPTION 49.Nm Lastcomm 50gives information on previously executed commands. 51With no arguments, 52.Nm 53prints information about all the commands recorded 54during the current accounting file's lifetime. 55.Pp 56The following options are available: 57.Pp 58.Bl -tag -width XXfXfileX -compact 59.Pp 60.It Fl E 61Print the time the process exited. 62.It Fl S 63Print the time the process started. 64.It Fl c 65Print the amount of cpu time used by the process. 66.It Fl e 67Print the amount of elapsed time used by the process. 68.It Fl s 69Print the amount of system time used by the process. 70.It Fl u 71Print the amount of user time used by the process. 72.It Fl f Ar file 73Read from 74.Ar file 75rather than the default 76.Pa /var/account/acct . 77.El 78.Pp 79If no options are specified, 80.Fl cS 81is assumed. 82If 83.Nm 84is invoked with arguments, only accounting entries with a 85matching 86.Ar command 87name, 88.Ar user 89name, 90or 91.Ar terminal 92name 93are printed. 94For example: 95.Pp 96.Dl lastcomm a.out root ttyd0 97.Pp 98would produce a listing of all the 99executions of commands named 100.Pa a.out 101by user 102.Ar root 103on the terminal 104.Ar ttyd0 . 105.Pp 106For each process entry, the following are printed. 107.Pp 108.Bl -bullet -offset indent -compact 109.It 110The name of the user who ran the process. 111.It 112Flags, as accumulated by the accounting facilities in the system. 113.It 114The command name under which the process was called. 115.It 116The amount of 117CPU 118.Pq Fl c , 119wall 120.Pq Fl e , 121system 122.Pq Fl s , 123or user 124.Pq Fl u 125time used by the process (in seconds). 126.It 127The time the process started 128.Pq Fl S 129or exited 130.Pq Fl E . 131.El 132.Pp 133The flags are encoded as follows: ``S'' indicates the command was 134executed by the super-user, ``F'' indicates the command ran after 135a fork, but without a following 136.Xr exec , 137.\" ``C'' indicates the command was run in PDP-11 compatibility mode 138.\" (VAX only), 139``D'' indicates the command terminated with the generation of a 140.Pa core 141file, and ``X'' indicates the command was terminated with a signal. 142.Sh FILES 143.Bl -tag -width /var/account/acct -compact 144.It Pa /var/account/acct 145Default accounting file. 146.El 147.Sh SEE ALSO 148.Xr last 1 , 149.Xr sigvec 2 , 150.Xr acct 5 , 151.Xr core 5 152.Sh HISTORY 153The 154.Nm 155command appeared in 156.Bx 3.0 . 157