Pragmas

How About Those Pragmas?

use integer;

Perl uses floating point math by defualt, this pragma tells Perl to use integer math, from here to the end of the enclosing block

use strict 'vars';

forces use of lexical variables, in other words, you have to scope the daylights out of your code, from here to the end of the enclosing block

use lib (list);

add new library paths for "use" and "require" statements