Select Code to Download

012323444, 4.5 Nuts & Bolts    ,
234334323, Fuzzy Nut bunnies    , 
434454554, Pineapple Pops     ,

3423434444, 45554342365, 012323444, 00000333, description 2 update1, d
+ata1, data2
4342344, 46565fg66, 234334323, 00004454, update this, data4, data6
523444234, 466763fg4, 434454554, 00005565, this too update, data7, dat
+a8

#open file1, split each line delimited by comma and read into %hash
#assume $code, and $description are the key/value pairs of the %hash.
...
 print file2 $values[1], ", ", $values[2], ", ", $values[3], ", ", $va
+lues[4], ", ", $values[5], ", ", "\n";
                                 # writing the line back into file2
}