145 lines
3.8 KiB
Groff
145 lines
3.8 KiB
Groff
.\" $NetBSD: lastcomm.1,v 1.12 2012/01/31 16:30:40 christos Exp $
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.\"
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.\" Copyright (c) 1980, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)lastcomm.1 8.1 (Berkeley) 6/6/93
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.\"
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.Dd January 31, 2012
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.Dt LASTCOMM 1
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.Os
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.Sh NAME
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.Nm lastcomm
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.Nd show last commands executed in reverse order
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.Sh SYNOPSIS
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.Nm
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.Op Fl w
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.Op Fl f Ar file
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.Op Ar command ...
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.Op Ar user ...
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.Op Ar terminal ...
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.Sh DESCRIPTION
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.Nm
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gives information on previously executed commands.
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With no arguments,
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.Nm
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prints information about all the commands recorded
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during the current accounting file's lifetime.
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.Pp
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Option:
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.Pp
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.Bl -tag -width Fl
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.It Fl f Ar file
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Read from
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.Ar file
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rather than the default
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accounting file.
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.It Fl w
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Use as many columns as needed to print the output instead of limiting it to 80.
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.El
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.Pp
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If called with arguments, only accounting entries with a
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matching
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.Ar command
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name,
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.Ar user
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name,
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or
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.Ar terminal
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name
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are printed.
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So, for example:
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.Pp
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.Dl lastcomm a.out root ttyd0
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.Pp
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would produce a listing of all the
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executions of commands named
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.Pa a.out
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by user
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.Ar root
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on the terminal
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.Ar ttyd0 .
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.Pp
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For each process entry, the following are printed.
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.Pp
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.Bl -bullet -offset indent -compact
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.It
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The name of the user who ran the process.
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.It
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Flags, as accumulated by the accounting facilities in the system.
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.It
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The command name under which the process was called.
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.It
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The amount of cpu time used by the process (in seconds).
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.It
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The time the process started.
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.It
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The elapsed time of the process.
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.El
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.Pp
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The flags are encoded as follows:
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.Dq S
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indicates the command was
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executed by the super-user,
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.Dq F
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indicates the command ran after
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a fork, but without a following
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.Xr exec 3 ,
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.Dq C
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indicates the command was run in PDP-11 compatibility mode
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(VAX only),
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.Dq D
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indicates the command terminated with the generation of a
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.Pa core
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file, and
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.Dq X
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indicates the command was terminated with a signal.
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.Pp
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The
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.Dq S
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and
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.Dq C
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flags are no longer recorded by the system, but will be reported by
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.Nm
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when reading from an accounting file generated by an older version
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of the system.
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.Sh FILES
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.Bl -tag -width /var/account/acct -compact
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.It Pa /var/account/acct
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Default accounting file.
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.El
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.Sh SEE ALSO
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.Xr last 1 ,
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.Xr sigaction 2 ,
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.Xr acct 5 ,
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.Xr core 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 3.0 .
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