Ok here's the deal I've got a form which outputs strings of numbers in to multiple text files. We are going to have to do number crunching on them. This is the output we get:

if you cat file1.txt you get
123
12
23

if you pull file1.txt in to vi you get
1^@2^@3
1^@2
2^@3

if i pull file1.txt in to notepad.exe you get
1 2 3
1 2
2 3

HERE'S WHAT I WANT
I would like a simple way to change this mysterious control character in to a comma so that my fil1.txt becomes
1,2,3
1,2
2,3

This is so I've got a comma delimited file (duh) and can pull it in to a spreadsheed and do all sorts of number crunching on it.

Any help would be greatly appreciated.

In reply to Search & Replace Revisited by codejnki

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.