topic Re: Shell hpux Question in Operating System - HP-UX

Shell hpux Question

M. FRANGEUL — Mon, 19 Jan 2004 11:03:03 GMT

Hello !
How can I quit a loop like "while" simply pushing a keyboard key whith HPUX V11.0 shell ?

Is it possible ? so what is the command ?

Thank's

Re: Shell hpux Question

Hoefnix — Mon, 19 Jan 2004 11:06:16 GMT

If your script is running interactive you can do a .
If it's in the background just kill it.
kill

Regards,

Peter

Re: Shell hpux Question

Bernhard Mueller — Mon, 19 Jan 2004 11:07:31 GMT

Hi,

enter stty
and you *should* see that
intr = Contol-C

you may map this differently if you want - at your own risk...

Regards,
Bernhard

Re: Shell hpux Question

Sridhar Bhaskarla — Mon, 19 Jan 2004 11:08:39 GMT

Hi,

You can type "ctrl-c" to quit the loop. If it didn't work try "ctrl-\".

-Sri

Re: Shell hpux Question

Jeff Schussele — Mon, 19 Jan 2004 11:14:49 GMT

Hi,

Besides ^C for interrupt you can try the quit sequence which is typically ctrl-backslash or the kill sequence which is typically ^U
Run
stty -a
to get the mappings for your current term type & session.

Rgds,
Jeff

Re: Shell hpux Question

Rodney Hills — Mon, 19 Jan 2004 11:26:15 GMT

If you want to quite the loop, yet continue with the rest of the script, then use "trap" to catch ctrl-c, set a flag, and test for the flag within your while loop.

HTH

-- Rod Hills

Re: Shell hpux Question

M. FRANGEUL — Mon, 19 Jan 2004 12:23:30 GMT

Thank's Rod,
Excuse me for my english, I'm french
your solution is better for me, but can you please give me an example.

Thank's again.

Re: Shell hpux Question

Rodney Hills — Mon, 19 Jan 2004 12:32:05 GMT

Here is an example-

#!/usr/bin/ksh
trap "a=1" 2
a=0
while [[ "$a" = 0 ]] ; do
echo hello
done
echo fini

This will loop echoing "hello" until the ctrl-c is pressed. The trap statement will set a=1 and the while loop will exit.

HTH

-- Rod Hills

Re: Shell hpux Question

M. FRANGEUL — Mon, 19 Jan 2004 12:56:24 GMT

Merci beaucoup Rod.

Re: Shell hpux Question

Rodney Hills — Mon, 19 Jan 2004 13:56:11 GMT

If this solution does what you were looking for, then assign points 8-10 to my reply.

This helps other users looking for similar solutions...

-- Rod Hills