If the line numbers and errors reported are the same then I can only suspect that you haven't saved the file. Is this the whole program? If not please pase the exact code and the output you get when running it.

Global symbol "%hash" requires explicit package name at test_do_archiv
+e2.pl line 68.
Global symbol "%hash" requires explicit package name at test_do_archiv
+e2.pl line 70.
Global symbol "%hash" requires explicit package name at test_do_archiv
+e2.pl line 72.
Global symbol "@array" requires explicit package name at test_do_archi
+ve2.pl line 79.
Execution of test_do_archive2.pl aborted due to compilation errors.
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#!/usr/bin/perl -w

use strict;
use Getopt::Long;
use UUID::Tiny;
use Sys::Syslog qw( :DEFAULT setlogsock);
use POSIX qw/strftime ceil/;
use Storable qw/dclone/;
use Digest::SHA qw/hmac_sha256 hmac_sha256_hex/;
use LWP;
use DBI;
use File::stat;
use HTTP::Request::Common qw/POST/;
use LWP::UserAgent::Determined;

delete @ENV{'PATH', 'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
use sigtrap 'handler' => \&term_handler, 'normal-signals';

#  Gen Config

# GETOPT
my $verbose;
my $datalist;
GetOptions ('verbose!' => \$verbose,
      "datalist=s" => \$datalist);

# Term Hanlder
sub term_handler {
    doLog("err","term_handler: Program terminated early due to user in
+put");
    exit 2;
}

# DATE STUFF
$ENV{TZ} = "Z";
my @systime = localtime();

# Log sub
sub doLog {
    my ($priority,$msg) = @_;
    return 0 unless ($priority =~ /info|err|debug/);
    setlogsock('unix');
    openlog("do_archive.pl", 'pid,cons', 'user');
    syslog($priority, $msg);
    closelog();
    return 1;
}

# Debug
sub doDebug {
        my ($header,$content) = @_;
        if ($verbose) {
    doLog("debug",$header.": ".$content);
    print "################".$header."#################\n".$content."\
+n"."##################################\n";
    }
}

# String Trim
sub doStringTrim {
        my $string=shift;
        $string =lc($string);
                $string=~s/^\s+//;
                $string=~s/\s+$//;
        return $string;
}

sub doHashTidy {
        my $hash=shift;
        foreach my $k (keys %{hash}) {
                my $kv=doStringTidy($k);
                my $vv=doStringTidy($hash{$k});
                delete $hash->{$k};
                $hash{$kv} = $vv;
    }
}

#ArrayTidy
sub doArrayTidy {
        my($array) = @_;
        foreach (@{array}) {
                $_=lc($_);
                s/^\s+//;
                s/\s+$//;
        }
}



my %hash=("X"," t ");
doHashTidy(\%hash);
foreach my $key ( keys %hash )
{
  print "key:$key, value:$hash{$key}\n";
}
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In addition to declaring your variables with my (as others have pointed out), you're not properly de-referencing your array or hash references. This

foreach my $k (keys %{hash}) {
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should be

foreach my $k (keys %{$hash}) {
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(and same for de-referencing the array reference in doArrayTidy).
-derby