use warnings;
use strict;
use Pod::Usage;

=head1 SYNOPSIS

Synopsis

=head1 FOO

Foo!

=head1 BAR

Bar!

=head1 QUZ

Quz!

=cut

open my $fh, '>', \my $str or die $!;
pod2usage(-exitval=>'NOEXIT',-verbose=>99,-output=>$fh,
	-sections=>['FOO','QUZ']);
close $fh;
print "<<$str>>\n";

__END__

<<foo:
    Foo!

quz:
    Quz!

>>