Using $/ is a nice esoteric idea requiring the person to really know perl in order to understand the code...
I'd saying changing the value of $/ to alter how a file is read in is pretty idiomatic perl[1], and failing that knowledge there was a link to the perlvar manpage.
but it won't work unless you already know that the file doesn't have the record separators.
If the records are delimited by 320 character chunks then the code should work as it'll remove any existing newlines then append one. If it gets much more complex than that then some seek()ing and closer examination of the data will be needed.
HTH

_________
broquaint

[1] what's more, setting $/ to an integer reference was implemented with record-oriented files in mind

update: reworded the second paragraph to be more accurate/less wrong (thanks for the heads-up Aristotle)


In reply to Re: Re: Re: Re: Re: Insert at regular increments by broquaint
in thread Insert at regular increments by EyeOpener

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.