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#!/usr/bin/perl #-w# Trial and error#use warnings;#use strict;#my @keys = sort keys %ENV;#my @values = sort values %ENV;# connect keys and values#print sort values %ENV;print sort keys values %ENV;exit;
Quote~/Dokumente$ perl env2.pl keys on reference is experimental at env2.pl line 13. Type of argument to keys on reference must be unblessed hashref or arrayref at env2.pl line 13.