I have two perl scripts. The first script reads a CSV
file and builds a hash (%User) based on 2 values in the
CSV- the hash is put into an output file. I want to
use the hash in the second script for a table lookup.

The first script to produce the hash is as follows:

#!/usr/bin/perl

use strict;
use warnings;

##########################################################
#
#  Read UserTable.csv and Create Hash for Lookup Table
#
##########################################################

my $appl;
my $loginuser;

for my $file ("UserTable.csv") {

  open (my $IN,"<",$file) or die "Can't open file $file: $!";
  open (my $OUT,">","UserLookup.dat") or die "Can't open file UserLook
+up.dat: $!
";

print $OUT "my \%User = \n";
print $OUT "{";

while (my $line = <$IN>) {
  chomp($line);
  my ($loginuser,$appl) = (split(",",$line)) [0,1];

 next if ($appl =~ /^\s*$/);

 print $OUT "$loginuser \=\> '$appl' \n";
}

print $OUT "}\;\n";

close $IN or die "Can't close input file: $!";
close $OUT or die "Can't close result file: $!";
}
[download]

My question is how do I now include this hash code (in
UserLookup.dat) in my 2nd script, so that I can do a
table lookup.

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