function_copy.sh

#!/usr/bin/env bash

# Returns an eval-safe representation of the bash function that when evaluated prints its name,
# useful when redefining functions
function_copy_rnd () {
local rand_prefix="$(head /dev/urandom | tr -dc A-Za-z | head -c 8)_"
    local name="$1"
    local decl;
    decl="$(declare -f "$name")" || return $?
    echo "${rand_prefix}${decl}; echo $(printf "%q" "${rand_prefix}${name}")"
    return 0;
}