read number form function

Abid Malik · 10-18-2010, 07:38 AM

Hello Everyone!

i have the following code:

#!/bin/bash

function get
{
read $1
if [ ! -n "$1" ]
then
$1=0
fi

}

get n
get m

echo n = $n
echo m = $m

now if we just press enter key at read instance. it should assign a zero value. But this code is not assigning an integer value to $1 but a string.

merijnofiets · 10-18-2010, 09:18 AM

"Data types are not declared for bash script"

so a string and an integer can be the same, if the string contains a number.
what is the string containing btw?