I guess you are seeking to duplicate the functionality already found in the xargs command.

For Perl, there is the module File::Find::Rule, which makes it very easy and convenient to find all files that match a certain criterion.

After you have obtained that list of interesting files, you just have to use the system function of Perl for each entry in the list of interesting files :

use strict;
use File::Find::Rule;

my @interesting_files = File::Find::Rule->file()
                                        ->name('*.txt')
                                        ->in(@ARGV);
for my $filename (@interesting_files) {
  system("my_program $filename");
};
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perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ;    # The  
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new   #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' #  web
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