gawk: Typing and Comparison

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1 6.3.2 Variable Typing and Comparison Expressions
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1      The Guide is definitive.  Reality is frequently inaccurate.
1       -- _Douglas Adams, 'The Hitchhiker's Guide to the Galaxy'_
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1    Unlike in other programming languages, in 'awk' variables do not have
1 a fixed type.  Instead, they can be either a number or a string,
1 depending upon the value that is assigned to them.  We look now at how
1 variables are typed, and how 'awk' compares variables.
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Menu

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· Variable Typing             String type versus numeric type.
· Comparison Operators        The comparison operators.
· POSIX String Comparison     String comparison with POSIX rules.
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