Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

I cannot see anything obvious that might cause your output file to be empty -- other than perhaps there were no events that matched your criteria. Is that possible?

This is the error i am getting since the file app_output.txt is empty couldn't read C:\log_parsing\app_output.txt - at log_windows_new.pl line 444.

That still doesn't isn't the full error message.

Line 444 is:

my @a = read_file($outputfile1) or die "couldn't read $outputfile1 - $!"; # ........................................^^

The $! should mean that the full error message would be something like:

couldn't read C:\log_parsing\app_output.txt - No such file or director +y at log_windows_new.pl line 444. #.............................................^^^^^^^^^^^^^^^^^^^^^^^^ +^

Or perhaps:code> couldn't read C:\log_parsing\app_output.txt - Permission denied at log_windows_new.pl line 444. #.............................................^^^^^^^^^^^^^^^^^ </code>

That piece of information would likely point to the source of the problem; but you haven't given us it?

I'd also suggest that you add $^E to line 44 (and other error messages). Ie:

my @a = read_file($outputfile1) or die "couldn't read $outputfile1 - $! [$^E]";

That may provide further clarification of the problem.


With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Creating thread to call Subroutines parallely by BrowserUk
in thread Creating thread to call Subroutines parallely by kar_thik82

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!
  • 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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others imbibing at the Monastery: (3)
    As of 2014-07-12 22:06 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      When choosing user names for websites, I prefer to use:








      Results (241 votes), past polls