Just another update

Task/Operator-precedence/AWK/operator-precedence.awk

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+# Operators are shown in decreasing order of precedence.
+# A blank line separates groups of operators with equal precedence.
+# All operators are left associative except:
+# . assignment operators
+# . conditional operator
+# . exponentiation
+# which are right associative.
+#
+#   ( )  grouping
+#
+#   $    field reference
+#
+#   ++   increment (both prefix and postfix)
+#   --   decrement (both prefix and postfix)
+#
+#   ^    exponentiation
+#   **   exponentiation (not all awk's)
+#
+#   +    unary plus
+#   -    unary minus
+#   !    logical NOT
+#
+#   *    multiply
+#   /    divide
+#   %    modulus
+#
+#   +    add
+#   -    subtract
+#
+#        string concatenation has no explicit operator
+#
+#   <    relational: less than
+#   <=   relational: less than or equal to
+#   >    relational: greater than
+#   >=   relational: greater than or equal to
+#   !=   relational: not equal to
+#   ==   relational: equal to
+#   >    redirection: output to file
+#   >>   redirection: append output to file
+#   |    redirection: pipe
+#   |&   redirection: coprocess (not all awk's)
+#
+#   ~    regular expression: match
+#   !~   regular expression: negated match
+#
+#   in   array membership
+#
+#   &&   logical AND
+#
+#   ||   logical OR
+#
+#   ?:   conditional expression
+#
+#   =    assignment
+#   +=   addition assignment
+#   -=   subtraction assignment
+#   *=   multiplication assignment
+#   /=   division assignment
+#   %=   modulo assignment
+#   ^=   exponentiation assignment
+#   **=  exponentiation assignment (not all awk's)