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LASTCOMM(1)		  BSD General Commands Manual		   LASTCOMM(1)

     lastcomm -- show last commands executed

     lastcomm [-EScesu]	[-f file] [+format] [command ...] [user	...]
	      [terminal	...]

     The lastcomm utility gives	information on previously executed commands.
     With no arguments,	lastcomm prints	information about all the commands
     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 for-
     mat 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) manual 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 sys-
	   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 exe-
     cuted 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.

     /var/account/acct	default	accounting file

     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.

     last(1), sigaction(2), strftime(3), acct(5), core(5)

     The lastcomm command appeared in 3.0BSD.

BSD				 May 17, 2012				   BSD


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