show last commands executed in reverse
lastcomm gives information on previously
executed commands. With no arguments,
prints information about all the commands recorded during the current
accounting file's lifetime.
The options are as follows:
- 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:
- The command terminated with the generation of a core file.
- The command ran after a fork, but without a following execve(2).
- The command did a system call from writable memory or the stack pointer was not in stack memory.
- The command was terminated due to a pledge(2) violation.
- The command did a memory access violation detected by a processor trap.
- The command tried a file access that was prevented by unveil(2).
- The command was terminated with a signal.
- default accounting file
last(1), sigaction(2), acct(5), core(5), accton(8)
lastcomm command appeared in