Also, you can use prototypes to get special argument passing: 

my_sub(%hash)

sub my_sub(\%) {
    my $hash_ref = shift;
    map { print "$_ => $$hash_ref{$_} \n" } keys %$hash_ref;
}

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In reply to Re: How Do I pass a hash to a subroutine? by nite_man
in thread How Do I pass a hash to a subroutine? by filmo

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