Hi Perlmongers
Can anybody assist in this issue ?
I have two input files which I merge into a third file and discard the input files
The format of the two input files was 
word decimal
word decimal
word decimal

[download]
The code I have does this 

open F1,"F1.dat" or die "Can't open F1.dat: $!\n";
open F2,"F2.dat" or die "Can't open F2.dat: $!\n";

   my (%hash1,%hash2);
   while (<F1>)
   {
      /(\w*) (\d*)/ ;
      $hash1{$1} = $2 ;
   }
   close F1;

   while (<F2>)
   {
      /(\w*) (\d*)/ ;
      $hash2{$1} = $2 ;
   }
   close F2;
   
   open MERGED,">merge.dat" or die "Can't open merge.dat:$!\n";
   foreach (sort keys %hash2)
   {
      if (defined($hash1{$_}))
      {
         print MERGED "$_ $hash1{$_}\n" ;
      } else {
         print MERGED "$_ $hash2{$_}\n" ;
      }
    }
    close MERGED;

[download]
This works fine. However the format of the input files has now changed so that there are extra words i.e. 
word decimal word....

[download]
The first two fields of each record will always be of the format "word decimal", but there could be an indeterminent number of words after the decimal.
I'm unsure how to adopt the code to handle the writing of field3 onwards to the merged file
Any thoughts welcome

In reply to file merge problem by Anonymous Monk

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