PerlMonks is not a code-writing service.

The script you have is fine as it is (if it works), what you need is another script that first divides the job so that it becomes manageable. Keys that have differing beginnings can never match, therefore, partitioning the records by their start serves to effectively reduce the job into many smaller jobs.

What part of the suggestion are you struggling with? For starters, you could try to work out a script that reads the records and dumps them on the screen, together with a note "this record must go in that file". The problem you have is a good learning opportunity, as it can be readily broken down into smaller sub-tasks that a beginner can handle.

In reply to Re^5: modification of the script to consume less memory with higher speed by Anonymous Monk
in thread modification of the script to consume less memory with higher speed by Anonymous Monk

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.