Question

How to know that the environment used in the script is the same that the program will see when it runs?.
Perl stores the environment in %ENV to my knowledge.

i am trying to use the code which is mentioned below in order to know the variables.

    require Data::Dumper;
    print STDERR Data::Dumper::Dumper( \%ENV );

Is there any procudure to check the env variables used before the script starts executing?

Answer 1

Not sure what you’re getting at, but you can put your code inside a BEGIN block to see what your environment variables are before any modules you use are loaded.

BEGIN {
    require Data::Dumper;
    print STDERR Data::Dumper::Dumper( \%ENV );
}