>> perl -MO=Deparse -le '@x = (0 .. 9)' @x = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9); >> perl -MO=Deparse -le '@x = (1 .. 0)' @x = (); >> perl -MO=Deparse -le '@x = ("0" .. "9")' @x = ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9'); >> perl -MO=Deparse -le '@x = ("1" .. "0")' @x = ('1', '2', '3', '4', '5', '6', '7', '8', '9'); >> perl -le 'print "1" > "0" ? "yes" : "no"' yes