You said that you were interested in "...a partial character by character match between 2 files until a non matching character occurs..." By the desired output, it looks like you want a character-by-character match between two words. Here, I believe, is what you've provided:

first_file      second_file       output
~~~~~~~~~~      ~~~~~~~~~~~       ~~~~~~
amayaM      ->  amayamAn     ->   amaya+mAn
souraM      ->  vismayamAn   ->   soura+mA
kamalZ      ->  souramA      ->    
            ->  kamalAn      ->

[download]

The output from the first pair of words makes sense, but I don't see a pattern between the words and the output after that. Please reformat your data using <code> tags and include enough to show the pattern. Also, please show the code that you have tried.

In reply to Re: partial match between 2 files by Kenosis
in thread partial match between 2 files by lakssreedhar

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.