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.
The options are as follows:
-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:
Name of the user who ran the process.
Flags, as accumulated by the system's accounting facilities.
Command name under which the process was called.
Amount of CPU time used by the process (in seconds).
Time the process started.
Elapsed time of the process.
The flags are encoded as follows:
‘S’
indicates the command was
executed by the superuser,
‘F’
indicates the command ran after
a fork, but without a following
exec(3),
‘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.