OK, this doesn't sound so difficult ... if possible I would read file2 completely into memory, already split up into a 2D array. So $file2[0][1], e.g. would be the 2nd field in line 1 of file2.

Having done that, proceed along the lines of the following (pseudo-)code: 

# process file1 line by line
while ($line = <FILE1>) {

  # split up the current line in file1
  @fields = split /!/, $line;

  # for each line in the 2nd file
  foreach $lineref (@file2) {
    $number_of_matches = 0;

    # compare the two lines
    for $index (0..$number_of_fields) {
      $number_of_matches++
       if ($lineref->[$index] eq $fields[$index]);
    }
    print "Matchinfo: ...";
  }
}

[download]

-- Hofmator

In reply to Re: Comparing fields in 1 database with fields in another by Hofmator
in thread Comparing fields in 1 database with fields in another by rline

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