#!/usr/bin/perl
use warnings;
use strict;

my %words;

while (defined (my $line = <DATA>)) {
    ++$words{lc $_} for $line =~ /(\w+)/g;
}

printf "There are %d occurences of '%s'\n", $words{lc $_}, $_
    for grep {exists $words{$_} && $words{$_} > 1} qw(text i);


__DATA__
hi monks
Happy new year to everyone
i have any array with me say @arr which contains number of words(may contain
spaces) and i also have a text (in array) which contains a text of say 1000
lines. i need to do

##</code><code>##

There are 2 occurences of 'text'
There are 3 occurences of 'i'