Just to note, a filehandle would work because it can act as an array. That's why you can do @lines = <FH>;

Now, concerning $ARRAY[++$#ARRAY] = $value;. Array elements are accessed by $array[$index]. So to access the second element in the array @array you would write $array[1]. It is a one because array indexes start at 0. Now, the $#ARRAY syntax is a special way of saying @array - 1; basically, it returns the index of the last element in @ARRAY. The ++ increments this value and then uses it as the new index, which it sets equal to $value.

As for the other question, this should work... Hopefully it gives you an idea of how to do things. Read up on sort if you don't get that part. 

while (($this, $that) = each(%list)) {
    push @array, $this, $that;
}
@array = sort { $a <=> $b } @array;

[download]

I hope that helps. You may also want to read the very helpful article "List" Is a Four-Letter Word.

Added part about the "list into array" thing.

In reply to Re: array pushing by The Mad Hatter
in thread array pushing by sulfericacid

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.