Thank everybody for the replies.

I was looking to what user bgreenlee replied.
I do not think it is that terrible to have, on occasion and for private use,
a module that is "require" as this is more similar to DLL,
that can also be started from command line or "system"

Solution works like charm.
If loaded as stand alone, the suffix is .pm. If 'required' then the suffix is .pl all that is needed then 
if ($0 =~ /\.pm$/i) {
 # execute stand alone
)
# fall thru for module.

[download]
Thanks again for all replies.

In reply to Re^2: Dual personality: Module and script by Anonymous Monk
in thread Dual personality: Module and script by Anonymous Monk

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.