I want to enforce that a script returns usage information if a required option is not passed.But when I call my script without any arguments, it still prints the SQL string instead of dieing with usage information. 
use Getopt::Long;
use Pod::Usage;
#use SQL::Generator;

GetOptions
  (
   'table=s'       => \$table,
   'id_field=s'    => \$email_field,
   'state_field=s' => \$state_field,
   'zip_field=s'   => \$zip_field,
   'dob_field=s'   => \$dob_field,
   'help|?'        => \$help,
   man             => \$man
  ) or die pod2usage(2) ;

pod2usage(1) if $help;
pod2usage(-exitstatus => 0, -verbose => 2) if $man;


print <<EOSQL

SELECT $id_field, $email_field, $state_field, $zip_field, $dob_field
FROM   $table
WHERE  $zip_field like '336%' or $zip_field like '335%'
    or $zip_field like '346%' or $zip_field like '337%'
    or $zip_field like '342%'

EOSQL

[download]
[tbone@MDB 202025-007]$ perl sql.pl -?
Usage:
     sql.pl [options]
     sql.pl --table=tabla --id_field=GID --state_field=STATE --dob_fie
+ld=DOB

     Options:
       --table        table
       --id_field     id field
       --state_field  state field
       --dob_field    dob field
       -help
       -man

[tbone@MDB 202025-007]$ perl sql.pl 

SELECT , , , , 
FROM   
WHERE   like '336%' or  like '335%'
    or  like '346%' or  like '337%'
    or  like '342%'

[tbone@MDB 202025-007]$

[download]

Carter's compass: I know I'm on the right track when by deleting something, I'm adding functionality

In reply to Required options processing Getopt::Long by princepawn

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.