On Wed, Mar 29, 2000 at 12:05:34PM +0200, Denis Barbier wrote:
> > the fmtutil script always return 0, which is confusing for script
> > writers.
> >
> > I would like to replace in all teTeX scripts traps like
> > trap 'cd /; ...some commands...; exit 0' 0 1 2 6 13 15
> > by
> > trap 'rc=$?; cd /; ...some commands...; exit $rc' 0 1 2 6 13 15
>
> On some systems (e.g. HP-UX 10.20/ksh), this does not work as expected.
> Consider the file test.sh
> #!/bin/sh
> trap 'rc=$?; echo $rc; exit $rc' 0 1 2 15
> exit 1
>
> And now, type
> sh test.sh || echo 1
>
> On HP-UX 10.20 with ksh, it prints 0.
> On Linux with bash, 1 is printed twice.
>
> I do not know what is the right answer, but to let all OS behave like
> the latter (which seems more logical) a workaround is to replace in
> teTeX scripts all occurences of
> exit 1
> by
> test 0 = 1 || exit 1
Or howabout:
rc=1; exit 1
and then the trap command would just be:
trap ' ... some commands ... ; exit $rc' 0 1 2 15
with an initial
rc=0
command.
Julian
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Julian Gilbey, Dept of Maths, QMW, Univ. of London. [EMAIL PROTECTED]
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