September 2009
Beginner
942 pages
85h 34m
English
Content preview from Linux in a Nutshell, 6th Edition
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Operators
The shell uses arithmetic operators from the C programming language; the following table lists the operators in decreasing order of precedence.
Operator | Description |
|---|---|
++ -- | Auto-increment and auto-decrement, both prefix and postfix. |
+ - ! ˜ | Unary plus and minus, logical negation and binary inversion (one’s complement). |
** | Exponentiation. |
* / % | Multiplication; division; modulus (remainder). |
+ - | Addition; subtraction. |
<< >> | Bitwise left shift; bitwise right shift. |
< <= > >= | Less than; less than or equal to; greater than; greater than or equal to. |
== != | Equality; inequality (both evaluated left to right). |
& | Bitwise AND. |
^ | Bitwise exclusive OR. |
| | Bitwise OR. |
&& | Logical AND (short-circuit). |
|| | Logical OR (short-circuit). |
?: | Inline conditional evaluation. |
= += -= | Assignment. |
*= /= %= | |
< <= > >= | |
&= ^= |= | |
' | Sequential expression evaluation. |
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