I would do it something like this: 
my %f1;

while (<FILE1>) {
    chomp;
    my @fields = split /\|/;
    my @col3   = split /\s+/, $fields[2];
    $f1{lc $fields[0]} = [$col3[0], $col3[2]];
}

while (<FILE2>) {
    chomp;
    my @fields = split /\s*\|\s*/;
    my $name = lc $fields[0];
    print "line $.: Name $fields[0] ";
    
    if (exists $f1{$name}) {
        if ($fields[1] == $f1{$name}[0] && 
            $fields[3] == $f1{$name}[1]    ) {
            print "matched.\n";
        } 
        else {
            print "found but not matched.\n";
        }
    } 
    else {
        print "not found.\n";
    }
}

[download]
Which, in your case, would give output of: 
line 1: Name David matched.
line 2: Name harry found but not matched.
line 3: Name harry found but not matched.

[download]
But I don't really know what you are trying to accomplish, or whether you want case insensitivity (remove the lc's if you don't).

In reply to Re: Matching two files by gamache
in thread Matching two files by thickice97

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