1# $FreeBSD$ 2 3T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX) 4trap 'rm -rf $T' 0 5cd $T || exit 3 6mkfifo fifo1 7 8v=$( 9 exec 3>&1 10 : <fifo1 & 11 { 12 wait $! 13 trap 'trap "" PIPE; echo trapped >&3 2>/dev/null' PIPE 14 echo x 2>/dev/null 15 } >fifo1 16) 17test "$v" = trapped 18