How about something like this:

#! /usr/bin/perl
use strict ;
use warnings ;
use Data::Dumper ;

my @match_arr  = qw( count pick words ) ;
my %match_hash = map { $_ => 1 } @match_arr ;

my %word_count ;
while ( <DATA> )
{
    my @words = split ;
    for ( @words ) { $word_count{$_}++ if $match_hash{$_} }
}

print Dumper \%word_count ;

exit ;

__DATA__
This is my data.
I will first count all the
words herein, then pick and
choose the data I want. I can pick
the words using grep.

[download]

_______________
DamnDirtyApe 
Those who know that they are profound strive for clarity. Those who
would like to seem profound to the crowd strive for obscurity.
            --Friedrich Nietzsche

In reply to Re: hard referencing in hashes?!? by DamnDirtyApe
in thread hard referencing in hashes?!? by imlou

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.