value inside a function


 
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# 1  
Old 08-04-2008
value inside a function

i have a script like this

#!/bin/ksh


initialize()
{
x=20
}

...
...
...


x=10
initialize;
echo $x


when i try to echo the value of x it should return only 10 and not 20
how to achieve the same

can any one help

thanks in advance
# 2  
Old 08-04-2008
Declare x as local using the local keyword inside the function to prevent it from modifying the global variable.

Code:
local x=20

# 3  
Old 08-04-2008
A variable declared as local is one that is visible only within the block of code in which it appears. It has local "scope." In a function, a local variable has meaning only within that function block.

- nilesh
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