Rather than using using C-Style for loops, you should probably use Foreach Loops both described in perlsyn. For the numbers case you have given and using Range Operators as described in perlop to generate the list, you could replace:

my $start_number = 1; my $end_number = 10; for (my $i=$start_number; $i<=$end_number; $i++) { print "\$i = $i\n"; }

with the much briefer, clearer (IMHO) and more robust (less prone to bugs):

foreach my $i (1 .. 10) { print "\$i = $i\n"; }

One of the nice features of range operator is that it operates on letters as well as numbers:

foreach my $i ('A' .. 'D') { print "\$i = $i\n"; }

Perl documentation seems to be down right now, so hopefully the above links function properly, but if not, you should be able to use the above information to navigate your local copies of the documentation. As a side note, see Writeup Formatting Tips, in particular please wrap posted code in <code> tags to aid in readability.


In reply to Re: For Statement & Letters by kennethk
in thread For Statement & Letters by thorvid_461

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.