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#!C:/perl/bin/perl
#!/usr/bin/perl
...
print "ARGV: ", join( q{,}, map { qq('$_') } @ARGV ), "\n";
print "\nEnvironment:\n";
print "$_: $ENV{$_}\n" for sort keys %ENV;

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$ chmod +x print_env.pl
$ ./print_env.pl one two three
$ perl print_env.pl one two three