1 echo " a " | (read x; echo "$x.")
3 echo " a b " | ( read x y ; echo -"$x"-"$y"- )
4 echo " a b\ " | ( read x y ; echo -"$x"-"$y"- )
5 echo " a b " | ( read x ; echo -"$x"- )
6 echo " a b\ " | ( read x ; echo -"$x"- )
8 echo " a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
9 echo " a b\ " | ( read -r x ; echo -"$x"- )
11 echo "\ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
12 echo "\ a b\ " | ( read -r x ; echo -"$x"- )
13 echo " \ a b\ " | ( read -r x y ; echo -"$x"-"$y"- )
14 echo " \ a b\ " | ( read -r x ; echo -"$x"- )
19 echo 1: "x[$x] y[$y] z[$z]"
20 echo 1a: ${z-z not set}