The Guide is definitive. Reality is frequently inaccurate.
Unlike other programming languages,
awk variables do not have a
fixed type. Instead, they can be either a number or a string, depending
upon the value that is assigned to them.
We look now at how variables are typed, and how
|• Variable Typing:||String type versus numeric type.|
|• Comparison Operators:||The comparison operators.|
|• POSIX String Comparison:||String comparison with POSIX rules.|