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  1. or download this
    use IPC::Lite qw(@urls);
push(@urls,'...');
  2. or download this
    require IPC::Lite;
IPC::Lite->import( Key => $0, qw( @urls ) );
...

Results in: 
Global Symbol "@urls" requires explicit package name (did you forget t
+o declare "my @urls"?)
  3. or download this
    require UNIVERSAL::require;
my $module = "IPC::Lite";
...

Results in: 
Global Symbol "@urls" requires explicit package name (did you forget t
+o declare "my @urls"?)