my @list_of_dirs;

# Create @list_of_dirs;

if( defined($opt_href->{"data"}) ) 
{
    # We have to do some searching to find complete list of dirs
    
    @roots_paths = (split /,/, $opt_href->{"data"});
    foreach $path (@root_paths)
    {
       find( sub { get_valid_dir( \@list_of_dirs) }, $path);
    }
}
else
{
    # Directory info is in a file, just have to validate info is correct
    
    blah...blah..
}