Using Shell Functions in "find"

1. You have to export the function since 'find' starts a new shell and if you don't export the function it won't be available for the sub-shell.
2. You should call the function with 'bash -c' since your function is not a name for an executable binary.

The script should be something like this:

#!/bin/bash

function mytest {
    echo "mytest $1"
}

export -f mytest

find . -exec bash -c "mytest {}" \;