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  1. or download this
    $ver = $ver +1;
    $command =~ s/<PATCH NUMBER>/$ver/;
    
    #can be rewritten as:
    $command =~ s/<PATCH NUMBER>/++$ver/e;
    
  2. or download this
    if ($command =~ /<VER NUMBER> /)
    {
    ...
       $ver = $ver +1;
       $command =~ s/<PATCH NUMBER>/$ver/;
    }
    
  3. or download this
    if ($command =~ /<VER\s+NUMBER>\s/)
    {
    ...
       $ver = $ver +1;
       $command =~ s/<PATCH\s+NUMBER>/$ver/;
    }