sub rout {
    # Filename portion is in global $_
    # Complete path is in global $name
    return unless /\.html?$/;

    local *FILE;
    open FILE, $name or die "Couldn't open $name for reading: $!";
    while( my $line = <FILE> ) {
        for my $hit ( $line =~ /%(ff|jj|bb)/g ) {
            print "Hit = $hit\n";
        }
    }
    close FILE or die "Couldn't close $name after reading: $!";
}

find( \&rout, "/disk1/disk2" );