in reply to Pulling specific data from a large text file

In your first while(<$IN>) loop you run through each line of the file until the end - after that loop $IN is empty. You need to put some check to break out of the first loop once you have the info you require, something like: 
while (<$IN>) {
    if (/(^w.*)/) {
        push @lsl,$1;
    }
    elsif (/^Directories/) {
        last;
    }
}

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In your second while(<$IN>) loop you print out the contents of %Hash for each found line - the first time %Hash will have only one item, the second two and so on. You need to take the print out of that loop. Also, everything is being added to the single @array and to the single @indexes, so the information of all keys will be printed for each key. Here is a different way to do it: 
sub GetDFSdata {
    #...
    #Get the list of file names and indexes
    my $name;
    while(<$IN>){
        chomp;
        next if /^operator/;
        #...etc.

        if (m/$start/) {
            $name = $1;
        } elsif (m/^record size:\s+\d+/) {
            $Hash{$name}{'record_size'} = $_;
        } elsif (m/^last record:\s+\d+/){
            $Hash{$name}{'last_record'} = $_;
        } elsif (m/^data byte count:\s+\d+/) {
            $Hash{$name}{'data_byte_count'} = $_;
        } elsif (m/^\s+index name:\s+(\w.*)/) {
            push(@{ $Hash{$name}{'indexes'} }, $1);
        }
    }
    close $IN;

    foreach my $key (keys %Hash) {
        print $OUT "File: $key<BR>\n";
        print $OUT "\tRecord Size: $Hash{$key}{'record_size'}<BR>\n";
        print $OUT "\tLast Record: $Hash{$key}{'last_record'}<BR>\n";
        print $OUT "\tData Byte Count: $Hash{$key}{'data_byte_count'}<
+BR>\n";
        my $str = join ',', @{ $Hash{$name}{'indexes'} };
        print $OUT "Index Names: $str\n";
    }
}

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Re^2: Pulling specific data from a large text file
by TStanley (Canon) on Jun 13, 2014 at 15:08 UTC

    After implementing your above suggestions, here is what the file name/index list looks like:

    File: 
 Record Size: 
 Last Record: 
 Data Byte Count: 68256
 Index Names: bulkconf_index, bulkcard_index, _deleted_record_index, g
+iftname-number-end, giftname-org-key, _deleted_record_index, _deleted
+_record_index, card_index, giftcard-hist-key, giftcard-hist-sold-key,
+ _deleted_record_index, giftbal_index, _deleted_record_index, pr-chec
+k-index, _deleted_record_index, card_index, giftdon_number_index, gif
+tdon_cat_index, giftdon_location_index, _deleted_record_index, print_
+req_index, _deleted_record_index, _deleted_record_index, ob-key, com_
+index, _deleted_record_index, chg_index1, date_index, store-index, 1,
+ zip_index, vzip_index, gift-number, gift-date-redeemed, _deleted_rec
+ord_index, reasons-index

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    It looks like it is collecting all of the index names in the file, but not associating them with a file name. As far as the number in the data byte count field, I can't tell where that is coming from, as none of the numbers match it. The output I am trying to get would ultimately look like:

    dfs01.out

File Listing
..list of file names here..

File Name and Index List

File: %demoulas_prod#d01>ccdem>files>gift-bulk
Record Size: 100
Last Record: 18912
Data Byte Count: 100
Index Names: bulkconf_index, bulkcard_index, _deleted_record_index

File: %demoulas_prod#d01>ccdem>files>gift-name
Record Size: 177
Last Record: 54756
Data Byte Count: 6022779
Index Names: giftname-number-end, giftname-org-key, _deleted_record_in
+dex

etc...

    [download]

    TStanley
    --------
    People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. -- George Orwell
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