Bash - run function and put output to string variable

In this article, we would like to show you how to run function in string and assign result to variable in Bash.

Practical example

In this example, we create example say_hello() function and run it inside a strings assigning results to the corresponding variables.

#!/bin/bash

function say_hello() {
    echo "Hello $1";
}


# Usage example:

name_1="Tom"
result_1="$(say_hello "$name_1")" # runs say_hello() and puts output into result_1 variable

name_2="Mark"
result_2="$(say_hello "$name_2")" # runs say_hello() and puts output into result_2 variable

echo "name: $string_1   result: $result_1"
echo "name: $string_2   result: $result_2"

See also

1. Bash - run command in string and assign result to variable