05-12-2012
You also should investigate the TMOUT environment variable
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LEARN ABOUT FREEBSD
lastcomm
LASTCOMM(1) BSD General Commands Manual LASTCOMM(1)
NAME
lastcomm -- show last commands executed
SYNOPSIS
lastcomm [-EScesu] [-f file] [+format] [command ...] [user ...] [terminal ...]
DESCRIPTION
The lastcomm utility gives information on previously executed commands. With no arguments, lastcomm prints information about all the com-
mands recorded during the current accounting file's lifetime.
The following options are available:
-E Print the time the process exited.
-S Print the time the process started.
-c Print the amount of cpu time used by the process.
-e Print the amount of elapsed time used by the process.
-s Print the amount of system time used by the process.
-u Print the amount of user time used by the process.
-f file
Read from file rather than the default /var/account/acct. If file is a single dash ('-') lastcomm reads accounting entries from the
standard input.
An operand with a leading plus sign ('+') is followed a user-defined format string which specifies the format in which to display the
process's start or exit date and time. The format string may contain any of the conversion specifications described in the strftime(3) man-
ual page, as well as arbitrary text.
If no options are specified, -cS is assumed. If lastcomm is invoked with arguments, only accounting entries with a matching command name,
user name, or terminal name are printed. For example:
lastcomm a.out root ttyd0
would produce a listing of all the executions of commands named a.out by user root on the terminal ttyd0.
For each process entry, the following are printed.
o The name of the user who ran the process.
o Flags, as accumulated by the accounting facilities in the system.
o The command name under which the process was called.
o The amount of CPU (-c), wall (-e), system (-s), or user (-u) time used by the process (in seconds).
o The time the process started (-S) or exited (-E).
The flags are encoded as follows: ``S'' indicates the command was executed by the super-user, ``F'' indicates the command ran after a fork,
but without a following exec(3), ``D'' indicates the command terminated with the generation of a core file, and ``X'' indicates the command
was terminated with a signal.
By default, accounting entries are printed going backwards in time, starting from the time lastcomm was executed. However, if lastcomm reads
entries from its standard input, then entries are printed in the order they are read.
FILES
/var/account/acct default accounting file
EXAMPLES
The command
lastcomm -Ee
will print the exit time and elapsed time of each command logged in /var/account/acct, while
tail -f -c 0 /var/account/acct | lastcomm -f -
will print details of each terminating command.
SEE ALSO
last(1), sigaction(2), strftime(3), acct(5), core(5)
HISTORY
The lastcomm command appeared in 3.0BSD.
BSD
May 17, 2012 BSD