# Build a Regex

my $rexstr=join'|',map {quotemeta $_} @exts; 
my $rex=qr/(?:$rexstr)$/i;

# Directory to Ignore 

my $dir = qr/pics/i;

my @list;

# Find the files
find({ 
      wanted =>sub{ print "Found a match: $_\n" if /$rex/; 
        push @list,$_ if /$rex/} , 
        no_chdir => 1, 
        preprocess => sub { grep not /$dir/ => @_ },
      }, 
      $search_root
    );


##</code><code>##

Not enough arguments for grep at test.pl.txt line 30, near "@_ }"
Execution of test.pl.txt aborted due to compilation errors.