Unix Shell Script Creating Functions
June 15, 2007 by Mark Marucot
Functions are named code blocks that can be referenced and executed as a unit. Functions have an option to take variable number of arguments and may return a value. If function returns a value, calling the function is usually part of an expression.
Syntax
CODE:
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name() {
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statements
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}
Example
CODE:
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#!/bin/sh
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sum() (
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echo $(($A + $B))
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)
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A=2
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B=5
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sum $A $B
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