I found that using either of the tied interfaces worked as you expect (both documented in the POD's for Perl-5.004 or later): 

#!/usr/bin/perl -w
use strict;
use IO::Scalar;

my $string;
tie *OUT, 'IO::Scalar', \$string;

select OUT;
print "line 1\nline 2\n", "line 3\n";

select STDOUT;
print "The string contains:\n$string\n";

### OR this way:

$string = '';
my $SH = IO::Scalar->new_tie(\$string);
$SH->print("line 1\n");  # use the OO method

print $SH "line 2\n";    # use it like a filehandle

select $SH;              # select it as default output handle
print "line 3\n";

select STDOUT;
print "The string contains:\n$string"
__END__

[download]

In reply to Re: select and IO::Handle by danger
in thread select and IO::Handle by John M. Dlugosz

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.