Hello Raya4505,

As you haven’t shown any sample input data, it’s difficult to guess what you are trying to do. However, I do have some observations on the code:

  1. The code as given is incomplete. I presume it begins with:

    use strict;
use warnings;
use Data::Dumper;    # for Dumper()

    [download]

  2. The line:

    open my $fh1, '>', "Output by RID.txt" or die "Cannot open output.txt:
+ $!";

    [download]

    contradicts itself. Is the output file to be named “Output by RID.txt” (with spaces) or “output.txt”?

  3. The body of the loop beginning foreach (my $RID) will never be entered: my declares $RID as a new lexical variable, so its value is undef and the loop immediately terminates.

  4. Having just opened the filehandle $fh1 for writing, you then immediately attempt to read from it: my @Search = <$fh1> ; This guarantees that @Search is empty.

  5. The hashes %frequency and %counts are populated, but never used.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Putting Hash values into an array by Athanasius
in thread Putting Hash values into an array by Raya4505

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