Try this:

print "$_\n"
    for sort { $b <=> $a } ( $string1, $string2, $string3 )

[download]

Note, this illustrates the contortions you put yourself through by using variables such as $string1, $string2, and $string3 when you really ought to be using a proper array such as @strings. Look at how the snippet improves if you use a proper array: 

print "$_\n" for sort { $b <=> $a } @array;

[download]

It could also be written as: 

print map { "$_\n" } sort { $b <=> @a } @array;

[download]

Or even... 

{
    local $, = "\n";
    print(
        sort( { $b <=> $a } @array ),
        ''
    );
}

[download]

By the way; the title to your question, "Sorting strings" seems to be a misnomer, since in your question you seem to be asking how to sort numeric values. Maybe I've missed the point. But if you're trying to sort ascii-betically (instead of numerically), use the cmp operator instead of <=>. This and more is discussed in sort.


Dave

In reply to Re: sorting string by davido
in thread sorting string 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.