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Chapter 10. Operators |
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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 |
Xor |
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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