From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Subject: Re: [9fans] History
From: rog@vitanuova.com
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Date: Tue, 14 Nov 2000 17:21:13 +0000
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it's possible to make a variant of "script" for plan 9 without using
any special purpose programs at all:

% > conslog
% chmod +a conslog
% pipefile -r 'tee conslog' -w 'tee conslog' /dev/cons
% rc < /dev/cons > /dev/cons >[2] /dev/cons

only slight problem seems to be that it doesn't exit when you type EOF.
a small price to pay.

  rog.


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Subject: Re: [9fans] History
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Date: Tue, 14 Nov 2000 15:50:01 GMT

Boyd Roberts wrote:
> i was gonna stay outa this, but script uses those god-awful ptys,

That's beside the point.  I didn't say "port script", I said
one measure of how good an operating system really is is how
transparent and efficient a program *like* BSD "script" is.
It ought to be possible to interpose a program "at" the user
interface that captures all user output (which might be
graphic, although for many purposes we could settle for the
text that is understood by the terminal-like text windows)
in some reviewable/replayable database (simple sequential
text log, if not supporting graphics).  Ideally, user input
should be captured also (if supporting just text, then the
displayed echo of the input might suffice).

One design issue for a script-like program is how to process
user-generated signals.
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