dtrace discuss - May 2007 - Display script result in one row

Hello i would like to print one script result on the first row...

I have a script that display a result per rox and per second..but i would like
to print the last result just one time on the first row...and replace it after
each second by a new result
Ex : for KB/S
12
14
85
46

i would like to replace 12 per 14 and 14 per 85....each result

thx for ur help
--
This message posted from opensolaris.org

dhizodfhazd wrote:
> Hello i would like to print one script result on the first row...
> 
> I have a script that display a result per rox and per second..but i would
like to print the last result just one time on the first row...and replace it
after each second by a new result
> Ex : for KB/S
> 12
> 14
> 85
> 46
> 
> i would like to replace 12 per 14 and 14 per 85....each result
perhaps if you showed us the actual script you''re using, you would save
us the guesswork ...?

HTH
-- 
Michael Schuster
Recursion, n.: see ''Recursion''

G''Day,

On Mon, May 21, 2007 at 03:24:38PM -0700, dhizodfhazd
wrote:
> Hello i would like to print one script result on the first row...
> 
> I have a script that display a result per rox and per second..but i would
like to print the last result just one time on the first row...and replace it
after each second by a new result
> Ex : for KB/S
> 12
> 14
> 85
> 46
> 
> i would like to replace 12 per 14 and 14 per 85....each result
If you''d like to refresh text on the screen, there are a number of
options.

1. Just a return code to redraw a line may solve your issue, eg,

	# dtrace -x switchrate=10 -qn ''syscall::write:entry {
		printf("\r%d ", timestamp); }''

2. In DTrace, call /usr/bin/clear and redraw the entire screen,

	system("clear");

    this does mean you need destructive mode (-w).

3. Like (2), but use printf to print the escape codes from /usr/bin/clear.
   Either hard code them, or pass them into DTrace from a shell script
   wrapper. Here you won''t need destructive mode.

4. Use a different interface like the chime GUI, or your own.

Having written a bunch of these tools, I''ve found them cute to show to
my friends but a pain to use day-to-day. Tools that print a scrolling
output usually prove more practical.

Brendan

-- 
Brendan
[CA, USA]