I think the easiest way would be to use a hash - something like this?
Oops - just realised this doesn't handle the case where the 3rd field is a duplicate - in fact it doesn't worry about the 3rd field at all. guha has supplied some modifed code, which I've used to replace my slightly dodgy stuff!
#!perl
use strict;
use warnings;
use diagnostics;
my ($type, $desc, %fruit);
open (FH, "y") || die "Cannot find file";
while (<FH>) {
(undef, $type, $desc) = split /:/;
$fruit{$type}{$desc}++;
}
close FH;
foreach my $type (keys(%fruit)) {
print "$type : ",scalar keys %{ $fruit{$type} }, "\n";
}
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.