Is webcal.cgi truly a CGI script? The problem is that in case of qx// or backticks, the script gets its parameters via @ARGV, and not through $ENV{QUERY_STRING} or STDIN with $ENV{CONTENT_LENGTH}.

Are you using CGI.pm to get parameters? If so, the script shouldn't have any problems parsing @ARGV.
The following works with ActivePerl 
---------------cut foo.pl -------------------
use CGI;
my $q = new CGI;
print "$_=",$q->param($_),"\n" for $q->param;
---------------cut foo.pl -------------------

C:\Perl>perl -e "print qx/foo.pl foo=bar bar=foo/;"
foo=bar
bar=foo

C:\Perl>

[download]
--perlplexer

In reply to Re: backtick ignores parameters by perlplexer
in thread backtick ignores parameters by unclepliny

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.