There is no 'die' statement in the whole script

The thing is that there doesn't have to be a die statement or an explicit exit(255) in the script to get an exit value of 255. But something must be setting that value. As a (somewhat ridiculous) example, if you have a C compiler you could compile the following C program into 'try.exe': 
int main(int argc, char * argv[])
{
 return 255;
}

[download]

And then you could run the following perl script: 
use warnings;
my $ret = system("try.exe");
print $ret >> 8, "\n", $? >> 8, "\n";

[download]

You would find that produces as output: 
255
255

[download]

In that perl script, there's no die(), no mention of "255" and, in fact, nothing even failed - yet the 8 high bits of $? were set. (Hopefully, you don't have an executable that's running successfully and returning 255.)

How do you find out what the exit code is ? Is there a 'print $exitcode;' in the script ? ... or a 'print $? >> 8;' ? ... If we know the means by which you are being made aware of the exit value, then that might help with our speculations.

Cheers,
Rob

In reply to Re^3: PERL exit code 255 by syphilis
in thread PERL exit code 255 by mcintst

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.