Here we go: (you may find a better way later) 
#!/usr/bin/perl

### do original data

open(COMPANIES, "+< ./data1") or die "can't open file: $!";
@contents = <COMPANIES>;
close(COMPANIES);
chomp(@contents);
open(INFO, "+< ./info.csv") or die "can't open file: $!";
@contents2 = <INFO>;
close(INFO);
chomp(@contents2);

### do data to be merged
$merges = 0;
foreach $record (@contents)  {
    @fields = split(/\|/,$record);
    $tidm=$fields[0];

    foreach $record2 (@contents2)  {
    @fields2 = split(/\|/,$record2);
    $tidm_inf=$fields2[0];

               if ($tidm eq $tidm_inf){
               $merged[$merges] = join("|",(@fields, @fields2[2..8]));
               $merges++;
               }

    }

}

### print merged
open(FILE,">outfile.dat");
foreach $merge(@merged){
print "$merge\n";
}
close(FILE);

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In reply to Re: how to merge similar data by katgirl
in thread how to merge similar data by alexiskb

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