I have a FASTA array and I need to make it into a hash in order to look for an specific ID and get that specific sequence, any ideas this is what I have until now and i know im not good with Perl by trying hard 

#!/usr/local/bin/perl
#the file name
$filename= hwk2.seq;

use strict;
use warnings;
use lib '/class/bi617a/share/textbook';
use BeginPerlBioinfo;

#Declare initialize the variables
my @file_data=();
my $sequence= '';
my $query= '';
my %hash= '';

#Read the contents of the file hwk3.seq
@file_data=get_file_data("hwk2.seq");

#Extract the sequence data from the content;
%hash= map {$_ => 1 } @file_data;

if (exists $hash{$query}){
print "This is sequence: $sequence";
}else { print "Not and ID"};
exit;

sub get_file_data{
my($filename) = @_;
use strict;
use warnings;

unless ( open (GET_FILE_DATA, $filename) ) {
print STDERR "Cannot open file \"$filename\"\n\n";
exit;
}
@filedata= <GET_FILE_DATA>;
close GET_FILE_DATA;
return @filedata;
}

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In reply to New to Perl by rolandomantilla

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