last commands executed in reverse order
gives information on previously executed
commands. With no arguments, lastcomm
information about all the commands recorded during the current accounting
The options are as follows:
- Read from file rather than
the default accounting file.
If called with arguments, only accounting entries with a matching
name are printed. So, for example:
lastcomm a.out root ttyd0
would produce a listing of all the executions of commands named
on the terminal
For each process entry, the following are printed:
- Name of the user who ran the process.
- Flags, as accumulated by the system's accounting
- Command name under which the process was called.
- Amount of CPU time used by the process (in
- 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
indicates the command was run in PDP-11 compatibility mode (VAX only),
‘D’ indicates the command terminated with the generation of a
file, ‘X’ indicates the
command was terminated with a signal, ‘P’ indicates the command
was terminated due to a
‘T’ indicates the command did a memory access violation detected
by a processor trap.
- default accounting file
command appeared in