From owner-freebsd-questions  Fri Jan 19 12:21:42 2001
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Date: Fri, 19 Jan 2001 15:27:43 -0500 (EST)
From: Dru <genisis@istar.ca>
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To: cjclark@alum.mit.edu
Cc: Ken Bolingbroke <hacker@bolingbroke.com>, questions@FreeBSD.ORG
Subject: Re: Command to Make "Printable" Text
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What shell are you using Crist?

I just created a script called test from the tcsh shell, issued:

col -b < test > clean
cat clean

and she looked good. I didn't have any control characters except for the
strings in my customized prompt.

Dru


On Fri, 19 Jan 2001, Crist J. Clark wrote:

> On Fri, Jan 19, 2001 at 07:55:37AM -0500, Dru wrote:
> > 
> > 
> > On Fri, 19 Jan 2001, Ken Bolingbroke wrote:
> > 
> > And for a good explanation of why, read:
> > 
> > http://www.oreillynet.com/pub/a/bsd/2000/10/11/FreeBSD_Basics.html?page=2
> 
> But it does not actually work right for this kind of thing.
> 
> First, I type something in using shell editing characters as I go. But
> this is what I see on my screen when I am done,
> 
>   [530:~] script
>   Script started, output file is typescript
>   [501:~] cat <<EOF
>   ? This is a test.
>   ? In this line, I will type some stuff and then kill it with ctrl-D.
>   ? Here I go past the end.
>   ? This line is pristine.
>   ? EOF
>   This is a test.
>   In this line, I will type some stuff and then kill it with ctrl-D.
>   Here I go past the end.
>   This line is pristine.
>   [502:~] exit
> 
>   Script done, output file is typescript
> 
> Use the '-v' switch on cat(1) to see all of my keystrokes and other
> goodies,
> 
>   [531:~] cat -v typescript
>   Script started on Fri Jan 19 11:35:59 2001
>   [501:~] cat <<EOF^M^M
>   ? This is not^H^[[K^H^[[K^H^[[Ka test.^M^M
>   ? In this line, I will type an extra^H^H^H^H^H^H^H^H^[[Pn^H^[[P ^H^[[Pe^Hxtra^[[K^H^H^H^Htra^[[K^H^H^Hra^[[K^H^Ha^[[K^H^[[Ksome stuff and then kill it with ctrl-D.^M^M
>   ? Here I go past the end and kill with ctrl-K.^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^[[K.^M^M
>   ? This line is pristine.^M^M
>   ? EOD^H^[[KF^M^M
>   This is a test.^M
>   In this line, I will type some stuff and then kill it with ctrl-D.^M
>   Here I go past the end.^M
>   This line is pristine.^M
>   [502:~] ^D^H^Hexit^M
> 
>   Script done on Fri Jan 19 11:37:43 2001
> 
> Now use col(1) followed by a look at the output with cat(1),
> 
>   [532:~] col < typescript > typescript1
>   [533:~] cat typescript1
>   Script started on Fri Jan 19 11:35:59 2001
>   [501:~] cat <<EOF
>   ? This is noKa test.
>   ? In this line, I will type PPPxtraKsome stuff and then kill it with ctrl-D.
>   ? Here I go past the endK.nd kill with ctrl-K.
>   ? This line is pristine.
>   ? EOKF
>   This is a test.
>   In this line, I will type some stuff and then kill it with ctrl-D.
>   Here I go past the end.
>   This line is pristine.
>   [502:~] exit
> 
>   Script done on Fri Jan 19 11:37:43 2001
> 
> We see that col(1) did not clean things properly. The '-b' switch does
> the same thing.



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