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Bash - return values from functions

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Created by:
Zeeshan-Peel
430

This article will show you how to return values from functions in Bash.

Practical examples

1. By setting the result to a global variable

#!/bin/bash

my_function() {
    result="sample value"
}

my_function
echo $result

Output: 

sample value

Note: 

Remember that using global variables is not a safe solution, especially when you are creating a large project.

2. Better solution - use local variables in your function

#!/bin/bash

my_function() {
    local local_result="sample value"
    echo "$local_result"
}

result=$(my_function)
echo $result

Output: 

sample value

 Note: 

`my_funciton` is an alternative notation to $(my_function).

Bash

Bash - return values from functions
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