Bash Function -> Command not found

Question

Hi gusy I am trying to learn Bash and cannot seem to get this basic script to work.

#!/bin/bash

function system_info
{    
    echo "function system_info"
}

$(system_info)

I get a function: command not found issue.

Answer 1

Bash is trying to evaluate the string that is outputted by the system_info function. You'll want to try the following, which will just simply run the function:

system_info

or to store the outputted value to a variable:

value=$(system_info)

Answer 2

You need to invoke the function by saying:

system_info

$(...) is used for command substitution.