One learns most by reaching beyond one's grasp.

I post code like this so that beginners can quickly see that there are tools for most things, even if they can't grok the code at once.

I am very glad that you posted the breakdown (although my goal was that the OP would "unpack" it him/herself) as it is surely important to understand what's really going on. Your demo is very important. My angle is honed by having worked with, hired, etc. too many Perl programmers who are so unfamiliar with standard modern tooling that they write krufty hand-rolled code that's hard to maintain.

I hope to inspire beginners to always be considering that there may be a better tool for some functionality than trying to reinvent the wheel (even if reinventing a couple is a necessary beginning step).



The way forward always starts with a minimal test.

In reply to Re^3: How can one sort array elements in different text files? by 1nickt
in thread How can one sort array elements in different text files? by supriyoch_2008

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.