DISCLAIMER: I haven't ever used Net::FTP.

You can open scalars (v5.8.0 required) by passing a reference to that scalar to open:

my $pseudo_file = "line1\nline2\n";
open my $rfd, '<', \$pseudo_file or die "open1: $!";
open my $wfd, '>', 'foo' or die "open2: $!";
print $wfd $_ while <$rfd>;      ## or 'print $wfd (<$rfd>);' if file 
+isn't large
close $wfd;
close $rfd;

[download]

So, according to the Net::FTP doc, I'd change your code to:

open my $fh, '<', \$pseudo_file_already_generated or die "open: $!";
$ftp->login("perl",'monk') or die "blah";
$ftp->put($fh, 'fh.txt') or warn "blah";
$ftp->quit;

[download]

Update: Better english.

--
David Serrano

In reply to Re^2: Net::FTP by Hue-Bond
in thread Net::FTP by vaevictus

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.