1*13de33a5SJulio Merino 2*13de33a5SJulio Merinox=a\ b 3*13de33a5SJulio Merino[ "$x" = "${x?}" ] || exit 1 4*13de33a5SJulio Merinoset -- ${x?} 5*13de33a5SJulio Merino{ [ "$#" = 2 ] && [ "$1" = a ] && [ "$2" = b ]; } || exit 1 6*13de33a5SJulio Merinounset x 7*13de33a5SJulio Merino(echo ${x?abcdefg}) 2>&1 | grep -q abcdefg || exit 1 8*13de33a5SJulio Merino${SH} -c 'unset foo; echo ${foo?}' 2>/dev/null && exit 1 9*13de33a5SJulio Merino${SH} -c 'foo=; echo ${foo:?}' 2>/dev/null && exit 1 10*13de33a5SJulio Merino${SH} -c 'foo=; echo ${foo?}' >/dev/null || exit 1 11*13de33a5SJulio Merino${SH} -c 'foo=1; echo ${foo:?}' >/dev/null || exit 1 12*13de33a5SJulio Merino${SH} -c 'echo ${!?}' 2>/dev/null && exit 1 13*13de33a5SJulio Merino${SH} -c ':& echo ${!?}' >/dev/null || exit 1 14*13de33a5SJulio Merino${SH} -c 'echo ${#?}' >/dev/null || exit 1 15*13de33a5SJulio Merino${SH} -c 'echo ${*?}' 2>/dev/null && exit 1 16*13de33a5SJulio Merino${SH} -c 'echo ${*?}' ${SH} x >/dev/null || exit 1 17*13de33a5SJulio Merino${SH} -c 'echo ${1?}' 2>/dev/null && exit 1 18*13de33a5SJulio Merino${SH} -c 'echo ${1?}' ${SH} x >/dev/null || exit 1 19*13de33a5SJulio Merino${SH} -c 'echo ${2?}' ${SH} x 2>/dev/null && exit 1 20*13de33a5SJulio Merino${SH} -c 'echo ${2?}' ${SH} x y >/dev/null || exit 1 21*13de33a5SJulio Merinoexit 0 22