Where does win32 python command prompt history happen?
David Broadwell
anti-spam.dbroadwell at mindspring.com
Fri May 16 00:06:55 EDT 2003
"Tim Roberts" <timr at probo.com> wrote in message
> >>in win9x days one had to enably doskey in the auotexec.bat file to get
this.
> >>afaik, at least since win2k, this has been part of the command prompt.
I
> >>doubt it is in the kernel, but it is part of windows.
> >
> >I don't think it's part of windows while it's in the Python
> >interactive console.
>
> Why not? Python gets its input by reading from stdin. As soon as it
reads
> from stdin, the process is under the control of Windows. As far as I
know,
> the original poster is correct: doskey maintains this history
> automatically.
>
> >IIRC it's part of the readline library.
>
> It is on the Linux-like systems, but I didn't think gnu readline was part
> of Python on Windows.
>
> Plus, it doesn't answer the original question "where is the history
> stored"?
Ug, i was loathe to mention it because i no longer have my old dos refrences
on hand, but if i rememebr correctly the history (as of old doykey, not it's
new countrerpart), was kept in the environment on a per boot basis. Yet
there were configs for 'shortcut' commands there were resident in the
autoecex.bat!
Ok, in short; I believe it's a dos environment variable.
I haven't been THAT hard core into dos in ... at least 8 years! When i
finally upgraded from dos to windows 95.
The sad thing is, it still answers to doskey, and attached is the doskey /?
which is about as close as i think we get to 'documents' on it these days.
$p$g> doskey /?
Edits command lines, recalls Windows 2000 commands, and creates macros.
DOSKEY [/REINSTALL] [/LISTSIZE=size] [/MACROS[:ALL | :exename]]
[/HISTORY] [/INSERT | /OVERSTRIKE] [/EXENAME=exename]
[/MACROFILE=filename]
[macroname=[text]]
/REINSTALL Installs a new copy of Doskey.
/LISTSIZE=size Sets size of command history buffer.
/MACROS Displays all Doskey macros.
/MACROS:ALL Displays all Doskey macros for all executables which
have
Doskey macros.
/MACROS:exename Displays all Doskey macros for the given executable.
/HISTORY Displays all commands stored in memory.
/INSERT Specifies that new text you type is inserted in old
text.
/OVERSTRIKE Specifies that new text overwrites old text.
/EXENAME=exename Specifies the executable.
/MACROFILE=filename Specifies a file of macros to install.
macroname Specifies a name for a macro you create.
text Specifies commands you want to record.
UP and DOWN ARROWS recall commands; ESC clears command line; F7 displays
command history; ALT+F7 clears command history; F8 searches command
history; F9 selects a command by number; ALT+F10 clears macro definitions.
The following are some special codes in Doskey macro definitions:
$T Command separator. Allows multiple commands in a macro.
$1-$9 Batch parameters. Equivalent to %1-%9 in batch programs.
$* Symbol replaced by everything following macro name on command line.
--
David Broadwell
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