How do I work with environment variables in Perl

In Perl, environment variables can be accessed using the %ENV hash. This hash contains key-value pairs where the keys are the names of the environment variables and the values are their corresponding values.

Here’s how you can work with environment variables in Perl:


        # Accessing an environment variable
        my $value = $ENV{'VARIABLE_NAME'};

        # Setting an environment variable
        $ENV{'NEW_VARIABLE'} = 'value';

        # Printing all environment variables
        while (my ($key, $value) = each %ENV) {
            print "$key = $value\n";
        }