how to trap signals in csh script ?

[Pascal Riou]

Hello

In bourne shell, i can trap most of signals :

#! /bin/sh

trap "echo SIGINT and SIGTSTP are trapped ..." 2 24

clear
echo "Waiting ..."

while [ -z "" ]
do
:
done

In csh manual says that we can trap SIGINT signal with onintr command :

#! /bin/csh

onintr trap-STOP

clear
echo "Waiting ..."

loop:
while (1)
:
end

trap-STOP:
echo "SIGINT is trapped"
goto loop

Is it possible to trape another signal than SIGINT in a csh script ?

Thank you.
--
Pascal Riou
mailto:Pasca...@vz.cit.alcatel.fr
tel : (1) 01-30-77-33-48
Fax : (1) 01-30-77-83-15

[Dave Brown]

In article <329EFD...@vz.cit.alcatel.fr>,
Pascal Riou <pasca...@vz.cit.alcatel.fr> wrote:
: Is it possible to trape another signal than SIGINT in a csh script ?

No.

A workaround is easy--just write all your scripts in Bourne shell. See
ftp://rtfm.mit.edu/pub/usenet/comp.unix.shell/Csh_Programming_Considered_Harmful
for more details.

--Dave

[Brian S Hiles]

Pascal Riou (pasca...@vz.cit.alcatel.fr) wrote:
: Hello

: In bourne shell, i can trap most of signals :
: #! /bin/sh
: trap "echo SIGINT and SIGTSTP are trapped ..." 2 24
: clear
: echo "Waiting ..."
: while [ -z "" ]
: do
: :
: done
: In csh manual says that we can trap SIGINT signal with onintr command :
: #! /bin/csh
: onintr trap-STOP
: clear
: echo "Waiting ..."
: loop:
: while (1)
: :
: end
: trap-STOP:
: echo "SIGINT is trapped"
: goto loop

: Is it possible to trape another signal than SIGINT in a csh script ?

: Thank you.

Nope.

-Brian
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