[Chapter 11] 11.5 Operators

11.5 Operators

The following table lists the operators, in order of increasing precedence, that are available in awk . Note: while ** and **= are common extensions, they are not part of POSIX awk .

Symbol	Meaning
`= += -= = /= %= ^= *=`	Assignment
`?:`	C conditional expression (`nawk` only)
`\|\|`	Logical OR (short-circuit)
`&&`	Logical AND (short-circuit)
`in`	Array membership (`nawk` only)
`~ !~`	Match regular expression and negation
`< <= > >= != ==`	Relational operators
(blank)	Concatenation
`+ -`	Addition, subtraction
`* / %`	Multiplication, division, and modulus (remainder)
`+ - !`	Unary plus and minus, and logical negation
`^ **`	Exponentiation
`++ --`	Increment and decrement, either prefix or postfix
`$`	Field reference