I'm not totally clear on what you are trying to do but maybe something like this will get you started:

# $infile is assumed to be the file you are reading...

# I'm assuming you know what you want to put in the out
# file name and how to get it...
my $otherinfo = &getotherinfo;

# the \d{2} is the day, make it \d{1,2} if you want to
# allow weblog.2Jul as well as weblog.23Jul
#
# the \w{3} catches the month abbreviation
(my $outfile = $infile) =~ s/\.\d{2}\w{3}/-$otherinfo/;

# do this if you want to use an absolute pathname...
$outfile = $pathname . $outfile;

open(OUTFILE, "> $outfile");

[download]

If i totally missed what you were trying to do, let me know.

Good luck,
Mark

In reply to Re: Getting correct filename by young perlhopper
in thread Getting correct filename by Anonymous Monk

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.