Logical Operators

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Logical Operators

Table 10-5. Logical Operators

Example	Name	Result
$a and $b	And	True if both $a and $b are true.
$a or $b	Or	True if either $a or $b is true.
$a xor $b	Or	True if either $a or $b is true, but not both.
! $a	Not	True if $a is not true.
$a && $b	And	True if both $a and $b are true.
$a \|\| $b	Or	True if either $a or $b is true.

The reason for the two different variations of "and" and "or" operators is that they operate at different precedences. (See Operator Precedence.)

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Incrementing/Decrementing Operators	Up	Operator Precedence