LASTCOMM(1)

NAME
lastcomm - show last commands executed in reverse order

SYNOPSIS
lastcomm [-f file] [command ...] [user ...] [terminal ...]

DESCRIPTION
lastcomm gives information on previously executed commands. With no arguments, lastcomm prints information about all the commands recorded during the current accounting file's lifetime.

Option:

-f file
    Read from file rather than the default accounting file.

If called with arguments, only accounting entries with a matching command name, user name, or terminal name are printed. So, 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.

•   The name of the user who ran the process.
•   Flags, as accumulated by the accounting facilities in the system.
•   The command name under which the process was called.
•   The amount of cpu time used by the process (in seconds).
•   The time the process started.
•   The elapsed time of the process.

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, ``C'' indicates the command was run in PDP-11 compatibility mode (VAX only), ``D'' indicates the command terminated with the generation of a core file, and ``X'' indicates the command was terminated with a signal.

FILES
/var/account/acct
    Default accounting file.

SEE ALSO
last(1), sigaction(2), acct(5), core(5)

HISTORY
The lastcomm command appeared in 3.0BSD.