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Summary

In this hour, you learned that Perl's most basic type of data is a scalar. Scalars can consist of almost any kind of data. Scalar values can be represented by string or numeric literals. Numeric literals can have many different formats representing integers and floating-point numbers. String literals are sequences of characters surrounded by either double or single quotation marks. Scalar values are stored in scalar variables, which have a dollar sign $ in front of their names. Perl provides operators for performing string manipulation and basic arithmetic.

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