Good questions, I should have clarified.

the lines are very long and there are a lot of them (these files are very large). I believe the lines are 15,000 characters long and there might be 2,000 of them. there is data on both sides and there can be more than one "0000J" and "0000K" on the same line. The letters go from J to U -12. As for 000-11 or 00-11. they will all always be five characters long. so it is 00-11. I don't know if they are all capitalized, and would like to be prepared if they were not (though I think I know how to make this change in perl). there is certainly no other use for those letters so one need not worry about changing a lowercase that means something else.

thanks again,

walter

In reply to Re^2: Easy find and replace loop. HELP! by wrml
in thread Find and replace by five character string by wrml

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.