Hi Monks, I have searched for this and found several nodes but could not find any that appeard to answer my question.. so I pose it here:

I want to check the length of a file to determing the value of a variable for later use. 

my $offline = 1 if (-s 'online.flg' gt 0);

[download]
This gets a warning Use of uninitialized value in numeric gt (>) so systematically I try defining each of the 3 elements: 
my $flag_size = -s 'online.flg';
my $offline = 1 if ($flag_size > 0);

[download]
my $flag_size = -s 'online.flg';
my $zero_value = 0;
my $offline = 1 if ($flag_size > $zero_value);

[download]
I even tried re-aranging my if statement: 
my $zero_value = 0;
my $flag_size  = -s 'online.flg';
my $offline = 0;
if($flag_size > $zero_value){
  $offline = 1;
}

[download]
All of them get the same warning.. can anyone shed any light on this?

Thanks, 

 ___
/\__\ "What is the world coming to?"
\/__/ www.wolispace.com

[download]

In reply to Use of uninitialized value in numeric gt (>) by wolis

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.