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# $FreeBSD: releng/12.0/bin/sh/tests/builtins/trap4.0 217035 2011-01-05 23:17:29Z jilles $
T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX)
trap 'rm -rf $T' 0
cd $T || exit 3
mkfifo fifo1
v=$(
exec 3>&1
: <fifo1 &
{
wait $!
trap 'trap "" PIPE; echo trapped >&3 2>/dev/null' PIPE
echo x 2>/dev/null
} >fifo1
)
test "$v" = trapped
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