[bash return values] The better way to break bash scripts into functions. #bash

snippet.md

Bash Functions Return Values

The lame, old way: passing in a global variable, setting it in the function, then unsetting it later on.

#!/bin/bash

function foobar() {
    eval $1="some return value"
}

function main() {
    foobar retval
    local var=$retval
    unset $retval
}

But now, the new way!

#!/bin/bash

function foobar() {
    echo "some return value"
}

function main() {
    local var=$(foobar)
}