[michael]$ find2perl /path/to/directory -name '*.b' -exec rm {} \; 

##</code><code>##

#! /usr/bin/perl -w

use strict;
use File::Find ();

sub wanted {
    /^.*\.b\z/s &&
    (unlink($_) || warn "$name: $!\n");
}

# Traverse desired filesystems
File::Find::find({wanted => \&wanted}, '/path/to/directory');
exit;