The example in the original post is one step in my overall goal. In moving forward, I think I do want a hash, however, the hash value for key 1 should be @array. Then the @array is undefined and the next match creates a new @array with is then the hash value for key 2. This process is repeated until all matches have been found in the file for each element in @headers. I am really struggling with this one.... I hope my explanation is clear. Here is my attempt at this. 

#!usr/bin/perl
use Tk;
use Cwd;
use strict;
use warnings;
#
######################################################################
+#####################
# GUI Building 
######################################################################
+#####################
#
# Create Main Window
my $mw=new MainWindow;
my $filename;
my $line;
my $n;
my @headers =     ("LAMINATE PROPERTIES",
        "LAMINATE STRESSES",
        "LAMINATE STRAINS",
        "CIRCUMFERENTIAL AND RADIAL STRESSES & STRAINS",
        "DISPLACEMENTS",
        "STRAINS PER PLY",
        "STRESSES PER PLY",
        "FAILURE CRITERIA PER PLY");
my $inner;
my @array;
my %hash;
my $ms_button = $mw->Button(-text=>"MS",
    -command=> \&BJSFM_MS)->pack();
MainLoop;

sub BJSFM_MS {
    $filename="BJSFM_out.prn";
    open(OUTPUT_FILE, "< $filename") or die "Can't find $filename!";
    $n=1;
        while ($line = <OUTPUT_FILE>) {
            if ($line =~ /$headers[$n-1]/) {
                undef @array;  #This clears the previous two instances
+ of $string1
                <OUTPUT_FILE> for 1..3;
                while ($inner = <OUTPUT_FILE>) {
                    last if $inner =~ /^$/;
                    push @array,$inner;
                }
                $hash{$n}=@array;
                $n++;
            }
        }
    close OUTPUT_FILE;
    print @array;
    print %hash;
}

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In reply to Re^2: File Parsing by shortyfw06
in thread File Parsing by shortyfw06

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