1222158Sjilles# $FreeBSD$ 2222158Sjilles 3222158Sjillesset -- a b c d e f g h i j 4222158Sjilles[ "$1" = a ] || echo "error at line $LINENO" 5222158Sjilles[ "${1}" = a ] || echo "error at line $LINENO" 6222158Sjilles[ "${1-foo}" = a ] || echo "error at line $LINENO" 7222158Sjilles[ "${1+foo}" = foo ] || echo "error at line $LINENO" 8222158Sjilles[ "$1+foo" = a+foo ] || echo "error at line $LINENO" 9222158Sjilles[ "$10" = a0 ] || echo "error at line $LINENO" 10222158Sjilles[ "$100" = a00 ] || echo "error at line $LINENO" 11222158Sjilles[ "${10}" = j ] || echo "error at line $LINENO" 12222158Sjilles[ "${10-foo}" = j ] || echo "error at line $LINENO" 13222158Sjilles[ "${100-foo}" = foo ] || echo "error at line $LINENO" 14