gawk: Constants

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1 6.1.1 Constant Expressions
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1 The simplest type of expression is the "constant", which always has the
1 same value.  There are three types of constants: numeric, string, and
1 regular expression.
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1    Each is used in the appropriate context when you need a data value
1 that isn't going to change.  Numeric constants can have different forms,
1 but are internally stored in an identical manner.
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Menu

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· Scalar Constants            Numeric and string constants.
· Nondecimal-numbers          What are octal and hex numbers.
· Regexp Constants            Regular Expression constants.
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