This is either a nit, or ignorance, but...

using AS 5.8.8 (819) on Win XP (gack, but no *n*x allowed at work), the last variant script in siva_kumar 's otherwise well-considered reply HANGS (as the knowledgable may well have expected).

It appears that his word "program" refers to ls (which was replaced with dir for this win test) but that the statement "Here ls command will get executed but $var will have nothing." would be more precise if rephased to:

"Here the ls command will be executed, but will never return control to the script. Hence, the line to print $var will never be executed."

From perldoc perlfunc: The "exec" function executes a system command *and never returns*-- use "system" instead of "exec" if you want it to return.

In reply to Re^2: Subroutine Return Values by ww
in thread Subroutine Return Values 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.