In Perl5, the sigil represents how the variable should be treated. It does not represent the type of the variable. So just like $ can be used by scalar, arrays and hashes, @ can be used by arrays and hashes.

select elementselect elements (slice)all keysall valuesall keys & values
scalar$scalar
array$array[$i]@array[@i](0..$#array)@array
hash$hash{$i}@hash{@i}keys(%hash)values(%hash)%hash
list(...)[@i]

This is all documented in perldata, including slices.

Update: Reordered the columns.

In reply to Re: meaning of '@' sigil on a hash? by ikegami
in thread meaning of '@' sigil on a hash? by awohld

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