Re: Referencing a hash of hashes

[imp]

This is because you are storing the name of the subroutine in your hash, when you should be storing a reference to the subroutine.

my %scripts = (
  "010" =>  {
              sub  => \&ACC_GET_STEP,
              step => '010',
            },
  "020" =>  {
              sub  => \&ACC_PUT_STEP,
              step => '020',
            },
  "030" =>  {
              sub  => \&ACC_GET_STEP,
              step => '030',
            },
);

You can then call the sub like this:

$sub = $scripts{$script}{sub} ;
$sub->($file, $step);
# Or 
&$sub($file, $step);

The first way of doing it looks cleaner and and running subs with a & prefix is a bad habit as it has magic when no arguments are passed.