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  1. or download this
    #!/usr/bin/perl
my $DEBUG = 1233;
my $VERBOSE=5;
...
  2. or download this
    #!/usr/bin/perl
our $DEBUG = 1233;
our $VERBOSE=5;
...
  3. or download this
    c:\@Work\Perl\monks>perl -wMstrict -le
"{ package Foo;
...
C: package global of main
D: package global of Foo
E: pure lexical defined in main