[Octave-bug-tracker] [bug #39734] interactive shell history should be saved on exec

[Mike Miller]

URL:
  <http://savannah.gnu.org/bugs/?39734>

                 Summary: interactive shell history should be saved on exec
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Thu 08 Aug 2013 11:19:33 PM EDT
                Category: Interpreter
                Severity: 1 - Wish
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

The exec function behaves like the shell command of the same name, or the
family of exec C functions. A new process takes the place of the running
Octave.

In bash, the exec command writes the shell history to HISTFILE, up to and
including the exec command itself. Octave, on the other hand, loses all of the
history from the current session. It would be nice if this were saved to
history_file exactly like a normal exit or a hangup.

Example bash:


bash-4.2$ ls
[...]
bash-4.2$ : now exec another bash
bash-4.2$ exec bash
bash-4.2$ # up arrow to see history from shell that just exec'd


Same thing with octave shows that the history is lost:


octave:1> version
ans = 3.7.5
octave:2> exec octave
GNU Octave, version 3.7.5
[...]
octave:1> # up arrow to see that previous history was lost





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