Re: simple substitution

if you are defining "UPPER_LIMIT" for a single script then

use constant UPPER_LIMIT => 10;
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as suggested by lidden will be fine.If you want to scale up and use the same constant in multiple scripts then you can define the constant (and all common VARS that you scripts) in a file and require that file in you scripts! To illustrate this type the following

$UPPER_LIMIT=10;
1;
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in a file called "ENV.pl"(Please note the 1 thats returned in last line), then in you scripts use

require "ENV.pl";
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This will import the contents of ENV.pl

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Re^2: simple substitution by ikegami (Patriarch) on Nov 02, 2007 at 06:32 UTC
Using `require` to load a file without a `package` statement is asking for trouble. Use `do` for such files. Better yet if you're going for re-use, make a real module (one that uses `package`) and use Exporter or the like to allow the user code to import only the constants and variables it needs.	[reply] [d/l] [select]