Hi tanuja,

If I understand correctly, you want to count the occurences of elements of a list. If so, this might help. 

#!/usr/bin/perl 

use strict;
use warnings FATAL => 'all';

my @colours = (  "red", "green", "yellow", "green", "yellow", "green",
+ "blue", "red", "green");

my %count;

$count{ $_ }++ for @colours;

print "$_\t$count{ $_ }\n" for keys %count;

__END__
output
green   4
blue    1
red     2
yellow  2

[download]

Hope this helps

thinker

In reply to Re: How to create multiple keys in a hash by thinker
in thread How to create multiple keys in a hash by tanuja

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