While I would recommend bundling more than one related subroutine in each file for easier bookkeeping, here is a simple way:

Make a file named Module.pm in '/usr/home/you/modules'. This one should contain something like:

package Module;

require Exporter;
@ISA = Exporter;
@EXPORT = qw(dostuff);

sub dostuff
{
my ($dostuff) = @_;
return $dostuff
}

1;
__END__
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One of those for each subroutine. Obviously you must substitute your own names and code. That 1; at the end is required!

You then call them by adding:

use lib '/usr/home/you/modules';
use Module qw(dostuff);
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to your main program.

I disagree with using a 'main' subroutine. It is un-Perlish and serves no purpose.

--
Regards,
Helgi Briem
helgi AT decode DOT is