Fellow Monks. I have ran into a problem with the task at hand. The script below is designed to read a file and take what is in the first column and if it matches the fifth column of the second to print out its corresponding row of data.

File1 Sample Data Input

name 17
name2 14
name3 14

[download]

File2 Sampe Data Input

1 2 3 4 name2 6 7 8 9 10 11 12 13 14 15
1 77 5 4 name2 6 9 8 9 10 11 12 13 14 15
1 2 3 4 name5 6 7 8 9 10 11 12 13 14 15

[download]

Desired Output

1 2 3 4 name2 6 7 8 9 10 11 12 13 14 15
1 77 5 4 name2 6 9 8 9 10 11 12 13 14 15

[download]

code 

open(FILE1, $ARGV[0]) or die "Cannot open the file: $!";
my $name
while(my $line = <FILE1>)  {
    my @data = split(" ", $line);
    $name = "$data[0]";
}

open(FILE2, $ARGV[0]) or die "Cannot open the file: $!";

while(my $line = <FILE2>)  {
    my @data2 = split(" ", $line);
    my $element = "$data2[4]";
    if ($element = $name) { 
    print "$data2[0]\t$data2[1]\t$data2[2]\t$data2[3]\t$data2[4]\t$dat
+a2[5]\t$data2[6]\t$data2[7]\t$data2[8]\t$data2[9]\t$data2[10]\t$data2
+[11]\t$data2[13]\t$data2[14]\n";
    }
}

close FILE1;
close FILE2;
exit;

[download]

the first part of the script prints the "$data[0]" works fine. I even tested it by itself by asking it to print "$name". The second part where I assigned "$data[0]" to the variable $name is what is giving me issues. I don't think it is recognizing it and not fulfilling the if then statement before the print. Am I approaching this incorrectly through

pseudo code

if column 5 FILE2 = column 1 of FILE1

print row

In reply to Table Matching by gghelpneeded

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