Greetings Monks,

I'm maintaining code that was written years and years ago by someone other than myself. My job is to go through and clean it up a bit (better documentation, standardize the code, etc.)

Today I've run across a program that is creating massive log files filled with "Use of uninitialized value in join or string." I can think of a couple of (bad) ways of keeping that from getting logged, but in the interest of doing a good job and learning a little something on the way I'm trying to figure out how to pinpoint the cause and fix it correctly.

Does anyone have sound advice on what to read/research? Is this a job for the perl debugger? Anyone have any good experience related advice?

Thanks in advance my friends!

In reply to Tracking down uninitialized values... by Slipstream

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.